12 Carat Cushion Lab Grown Diamond Prices Comparison
As of April 2026, 12 carat cushion lab grown diamonds usually range from $2,730 to $56,403, with an average price of $13,594.In the last month, prices for these diamonds are down 1.9%.Compare 26 verified listings across 3 retailers tracked by CaratRadar.
12 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 26 verified 12-carat cushion lab grown diamonds listed across 3 online retailers. Prices in this segment range from $2,730 to $56,403, with an average asking price of $13,594 and a median of $10,999.
The price spread of $53,673 (95.2% 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.
26 diamonds tracked in this segment
Price range: $2,730 to $56,403
Average price: $13,594
Median price: $10,999
Available across 3 retailers
Savings potential: up to 95.2%
Price Range Overview
As of Apr 16, 2026Real market range for this carat, shape, and diamond type.
26
$2,730
$13,594
$10,999
$56,403
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 68%IGI | 12ct | Cushion | D | VVS2 | Ideal
From $11,354
Compare at $35,510
Save 76.8%IGI | 12.01ct | Cushion | F | VVS2 | Ideal
From $6,221
Compare at $26,820
IGI | 12.01ct | Cushion | G | VS2 | Ideal
From $7,038
Compare at $17,760
Save 83.6%IGI | 12.01ct | Cushion | G | VVS2 | Excellent
From $3,896
Compare at $23,770
IGI | 12.01ct | Cushion | F | VVS2 | Excellent
From $6,320
Compare at $26,820
Save 79.2%IGI | 12.01ct | Cushion | F | VVS2 | Ideal
From $5,570
Compare at $26,820
Save 61.5%IGI | 12.01ct | Cushion | F | VS1 | Ideal
From $3,345
Compare at $8,690
Save 79.9%IGI | 12.02ct | Cushion | F | VVS2 | Ideal
From $5,399
Compare at $26,840
Save 60%IGI | 12.03ct | Cushion | E | VS1 | Ideal
From $13,322
Compare at $33,270
Save 11.7%IGI | 12.03ct | Cushion | F | VS1 | Ideal
From $10,380
Compare at $11,760
Save 61.8%IGI | 12.03ct | Cushion | F | VVS2 | Very Good
From $10,265
Compare at $26,860
IGI | 12.04ct | Cushion | F | VVS2 | Ideal
From $5,021
Compare at $13,786
Save 45.7%IGI | 12.04ct | Cushion | FANCY | VS1 | Excellent
From $11,677
Compare at $21,515
Save 45.7%IGI | 12.04ct | Cushion | FANCY | VS1 | Excellent
From $10,328
Compare at $19,029
IGI | 12.06ct | Cushion | F | VVS2 | Ideal
From $5,470
Compare at $11,784
Save 67.5%IGI | 12.07ct | Cushion | E | VS1 | Excellent
From $9,758
Compare at $30,050
Save 77.2%IGI | 12.07ct | Cushion | F | VS1 | Excellent
From $5,675
Compare at $24,880
Save 45.7%IGI | 12.07ct | Cushion | FANCY | VS1 | Excellent
From $10,354
Compare at $19,076
Save 76.4%IGI | 12.07ct | Cushion | F | VVS2 | Very Good
From $6,350
Compare at $26,950
IGI | 12.08ct | Cushion | G | VS2 | Ideal
From $6,940
Compare at $19,660
IGI | 12.08ct | Cushion | G | VS1 | Ideal
From $9,220
Compare at $10,375
Save 76.4%IGI | 12.08ct | Cushion | G | VS1 | Ideal
From $5,037
Compare at $21,340
Save 53%IGI | 12.09ct | Cushion | E | VS1 | Ideal
From $9,877
Compare at $21,019
Save 45.7%IGI | 12.09ct | Cushion | FANCY | VS1 | Excellent
From $10,371
Compare at $19,108
Save 63%IGI | 12.09ct | Cushion | E | VVS2 | Ideal
From $4,480
Compare at $12,099
Save 71.9%IGI | 12.09ct | Cushion | E | VS1 | Ideal
From $8,463
Compare at $30,100
Entry pricing in this category starts around $2,730.
What to Know When Shopping for 12 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $53,673 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 $10,999 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.
- Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.
Frequently Asked Questions
We currently track 26 comparable stones in this segment. Prices start around $2,730 and go up to $56,403.
Based on the latest market data, the average asking price is about $13,594 with a median around $10,999.
The observed spread is roughly $53,673 across tracked listings, which is about 95.2% 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 $10,999, 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 3 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 $53,673 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
12.1 Carat Cushion Lab Grown Diamond Prices
11.6 Carat Cushion Lab Grown Diamond Prices
11.5 Carat Cushion Lab Grown Diamond Prices
12.5 Carat Cushion Lab Grown Diamond Prices
11.2 Carat Cushion Lab Grown Diamond Prices
11.1 Carat Cushion Lab Grown Diamond Prices
11 Carat Cushion Lab Grown Diamond Prices
12 Carat Emerald Lab Grown Diamond Prices
12 Carat Oval Lab Grown Diamond Prices
12 Carat Pear Lab Grown Diamond Prices
12 Carat Round Lab Grown Diamond Prices
12 Carat Radiant Lab Grown Diamond Prices
Tracking Lab Grown inventory for 12 carat Cushion diamonds.