CaratHunter
Plans
Cushion|Lab Grown|IGI

12.15ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG577377305

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG577377305

Diamond specifications and retailer prices

From $4,073 USD
As of November 1, 2026
Save $18,957 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $23,030 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 12.15ct lab-grown cushion diamond

This 12.15ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG577377305 or 577377305. Listed at 15 retailers as of November 1, 2026, with prices from $4,073 to $23,030, a $18,957 spread on the same certified stone. Brilliant Earth lists it at $23,030. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.15
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577377305
Dimensions16.36 × 11.70 × 7.73 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
16.36 mm11.70 mm12.15 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577377305
Side View
Table 64.0%Crown 40.4°Girdle: MED-THKPavilion 34.7°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $23,030 USD|Low: $2,908 USD|High: $23,740 USD|Avg: $7,752 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 6$4,073 USD
Retailer 15$4,219 USD
Retailer 5$4,422 USD
Retailer 14$5,280 USD
Retailer 2$5,395 USD
Retailer 10$5,466 USD
Retailer 13$6,469 USD
Retailer 4$6,477 USD
Retailer 3$6,542 USD
Retailer 8$6,924 USD
Retailer 7$7,576 USD
Retailer 11$7,899 USD
Retailer 9$9,976 USD
Retailer 12$10,625 USD
Brilliant Earth$23,030 USD

29 data points across 15 retailers

15 retailers$4,073 USD to $23,030 USD

A
Cheapest Retailer
-
$4,073 USD
Final sale: no returns
Retailer 2
-
$4,219 USD
View
Price last confirmed 21 days ago
B+
Retailer 3
-
$5,395 USD
View
A
Retailer 4
-
$5,466 USD
£4,304 GBP
View
Retailer 5
-
$6,469 USD
ZAR 104,511 ZAR
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$6,477 USD
£5,100 GBP
View
B+
Retailer 7
-
$6,542 USD
View
B+
Retailer 8
-
$6,924 USD
€6,594 EUR
View
Retailer 9
-
$7,576 USD
View
Price last confirmed 54 days ago
B+
Retailer 10
-
$7,899 USD
A$12,152 AUD
View
B+
Retailer 11
-
$9,976 USD
View
B
Retailer 12
-
$10,625 USD
A$16,346 AUD
View
B
Retailer 13
-
$11,712 USD
View
B
Retailer 14
-
$14,882 USD
View
Most Expensive
B
Brilliant Earth
14103520A · Nov 2
$23,030 USD
View
14 more retailers have this diamond
Prices start from $4,073 USDSave up to $18,957 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
12.15ct Cushion
$4,073 USD