3.6 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 3.6 carat marquise lab grown diamonds usually range from $740 to $49,381, with an average price of $4,290.In the last month, prices for these diamonds are down 0.2%.Compare 66 verified listings across 5 retailers tracked by CaratRadar.
3.6 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 66 verified 3.6-carat marquise lab grown diamonds listed across 5 online retailers. Prices in this segment range from $740 to $49,380, with an average asking price of $4,290 and a median of $3,300.
The price spread of $48,640 (98.5% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
66 diamonds tracked in this segment
Price range: $740 to $49,380
Average price: $4,290
Median price: $3,300
Available across 5 retailers
Savings potential: up to 98.5%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
66
$740
$4,290
$3,300
$49,381
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 44.6%GIA | 3.61ct | Marquise | G | VS1 | Excellent
From $3,667
Compare at $6,620
Save 77.9%IGI | 3.61ct | Marquise | E | VVS2 | Ideal
From $2,373
Compare at $10,750
Save 66.5%IGI | 3.61ct | Marquise | D | VVS1 | Ideal
From $3,916
Compare at $11,680
Save 12.6%IGI | 3.61ct | Marquise | E | VVS2 | Excellent
From $5,993
Compare at $6,860
Save 80.4%IGI | 3.61ct | Marquise | F | VVS2 | Ideal
From $1,490
Compare at $7,600
Save 72.3%GIA | 3.62ct | Marquise | D | IF | Excellent
From $15,460
Compare at $55,850
Save 59.6%IGI | 3.62ct | Marquise | G | VS1 | Excellent
From $2,247
Compare at $5,557
Save 65.8%IGI | 3.62ct | Marquise | E | VVS1 | Excellent
From $5,758
Compare at $16,819
Save 79.5%IGI | 3.62ct | Marquise | E | VVS2 | Excellent
From $1,626
Compare at $7,924
Save 65.4%IGI | 3.63ct | Marquise | E | VVS2 | Ideal
From $2,386
Compare at $6,900
Save 42.5%IGI | 3.63ct | Marquise | D | VVS2 | Ideal
From $3,975
Compare at $6,910
Save 79.5%IGI | 3.63ct | Marquise | D | IF | Very Good
From $11,505
Compare at $56,030
Save 71.3%IGI | 3.63ct | Marquise | D | VS1 | Ideal
From $3,232
Compare at $11,270
Save 66.5%IGI | 3.63ct | Marquise | D | VVS1 | Ideal
From $3,938
Compare at $11,740
Save 73.5%IGI | 3.63ct | Marquise | E | VVS1 | Very Good
From $2,682
Compare at $10,130
IGI | 3.63ct | Marquise | E | VVS2 | Very Good
From $1,269
Compare at $8,740
Save 72.4%IGI | 3.64ct | Marquise | D | VVS2 | Ideal
From $3,986
Compare at $14,420
Save 63.9%IGI | 3.64ct | Marquise | E | VVS2 | Ideal
From $2,393
Compare at $6,630
Save 84.2%IGI | 3.64ct | Marquise | E | VS1 | Very Good
From $1,015
Compare at $6,420
Save 69.6%IGI | 3.64ct | Marquise | D | FL | Very Good
From $14,886
Compare at $49,040
Save 48.1%IGI | 3.65ct | Marquise | H | VVS2 | Ideal
From $851
Compare at $1,640
Save 82.8%IGI | 3.65ct | Marquise | F | VS2 | Ideal
From $1,078
Compare at $6,280
Save 80.9%IGI | 3.65ct | Marquise | F | VVS2 | Excellent
From $1,470
Compare at $7,680
Save 66%GIA | 3.66ct | Marquise | E | VS1 | Excellent
From $5,893
Compare at $17,310
Save 71.5%IGI | 3.66ct | Marquise | F | VVS2 | Ideal
From $2,500
Compare at $8,760
Save 41.7%IGI | 3.66ct | Marquise | F | VVS2 | Very Good
From $1,087
Compare at $1,864
Save 57.6%GIA | 3.67ct | Marquise | D | VVS2 | Excellent
From $8,698
Compare at $20,520
Save 69.1%IGI | 3.67ct | Marquise | E | VVS1 | Ideal
From $3,168
Compare at $10,260
Save 88.3%IGI | 3.67ct | Marquise | F | VS2 | Ideal
From $740
Compare at $6,320
Save 53.1%IGI | 3.67ct | Marquise | D | IF | Ideal
From $8,220
Compare at $17,540
Save 74.8%IGI | 3.67ct | Marquise | D | VVS1 | Ideal
From $5,243
Compare at $20,770
Save 74.8%IGI | 3.67ct | Marquise | D | VVS1 | Ideal
From $5,488
Compare at $21,750
Save 43.3%IGI | 3.67ct | Marquise | E | IF | Very Good
From $7,799
Compare at $13,750
Save 69.7%IGI | 3.67ct | Marquise | D | VVS1 | Very Good
From $3,623
Compare at $11,970
Save 80.8%IGI | 3.67ct | Marquise | E | VVS2 | Excellent
From $1,545
Compare at $8,033
Save 76.8%IGI | 3.67ct | Marquise | E | VVS1 | Excellent
From $2,378
Compare at $10,270
Save 67.3%GIA | 3.68ct | Marquise | E | VVS2 | Excellent
From $6,109
Compare at $18,670
Save 35.6%GIA | 3.68ct | Marquise | D | VVS2 | Excellent
From $4,316
Compare at $6,700
Save 71.4%IGI | 3.68ct | Marquise | E | VVS2 | Ideal
From $2,776
Compare at $9,690
Save 77.1%IGI | 3.68ct | Marquise | E | VVS1 | Ideal
From $2,355
Compare at $10,290
Save 82.4%IGI | 3.68ct | Marquise | E | VS1 | Excellent
From $1,517
Compare at $8,630
Save 77.1%IGI | 3.68ct | Marquise | E | VVS1 | Excellent
From $2,355
Compare at $10,290
Save 37.6%GIA | 3.69ct | Marquise | D | VVS1 | Excellent
From $7,465
Compare at $11,970
Save 48.2%IGI | 3.69ct | Marquise | H | VVS2 | Ideal
From $873
Compare at $1,684
Save 73.9%IGI | 3.69ct | Marquise | F | VS1 | Very Good
From $1,548
Compare at $5,941
Save 85.1%IGI | 3.69ct | Marquise | G | VVS2 | Ideal
From $1,025
Compare at $6,890
Save 72%IGI | 3.69ct | Marquise | E | VVS2 | Ideal
From $1,702
Compare at $6,070
IGI | 3.69ct | Marquise | E | VS1 | Very Good
From $1,271
Compare at $8,620
Save 70.2%GIA | 3.7ct | Marquise | D | VVS2 | Excellent
From $4,120
Compare at $13,848
Save 71.5%GIA | 3.7ct | Marquise | E | VVS1 | Very Good
From $4,900
Compare at $17,190
Entry pricing in this category starts around $740.
What to Know When Shopping for 3.6 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $48,640 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $3,300 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Marquise diamonds maximize carat weight face-up and appear larger than their actual weight. Check symmetry carefully.
Frequently Asked Questions
We currently track 66 comparable stones in this segment. Prices start around $740 and go up to $49,380.
Based on the latest market data, the average asking price is about $4,290 with a median around $3,300.
The observed spread is roughly $48,640 across tracked listings, which is about 98.5% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $3,300, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 5 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $48,640 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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