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Cushion|Lab Grown|IGI

15.09ct F VVS2 Cushion Lab Grown Diamond

EX • F/VVS2 • IGI LG628471625

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG628471625

Diamond specifications and retailer prices

From $7,173 USD
£5,648 GBP
As of November 1, 2026
Save $23,817 USD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $30,990 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.09ct lab-grown cushion diamond

This 15.09ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG628471625 or 628471625. Listed at 16 retailers as of October 31, 2026, with prices from $7,173 to $30,990, a $23,817 spread on the same certified stone. Brilliant Earth lists it at $30,990. 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

15.09
Carat
F
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628471625
Dimensions13.60 × 13.60 × 8.85 mm
L/W Ratio1.00
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
13.60 mm13.60 mm15.09 ctF / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628471625
Side View
Table 61.0%Crown 38.5°Girdle: THK-VTKPavilion 31.7°Culet: NoneDepth 65.1%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $30,990 USD|Low: $7,171 USD|High: $30,990 USD|Avg: $13,210 USD
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 9$7,173 USD
Retailer 7$8,415 USD
Retailer 4$8,623 USD
Retailer 3$8,870 USD
Retailer 6$8,931 USD
Retailer 14$9,356 USD
Retailer 15$10,342 USD
Retailer 2$10,919 USD
Retailer 12$13,826 USD
Retailer 11$14,823 USD
Retailer 10$15,115 USD
Retailer 8$17,000 USD
Retailer 13$17,104 USD
Retailer 5$24,868 USD
Brilliant Earth$30,990 USD

43 data points across 15 retailers

16 retailers$7,173 USD to $30,990 USD

A
Cheapest Retailer
-
$7,173 USD
£5,648 GBP
B+
Retailer 2
-
$8,415 USD
View
B+
Retailer 3
-
$8,623 USD
View
Final sale: no returns
B+
Retailer 4
-
$8,870 USD
View
Retailer 5
-
$8,931 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$9,356 USD
View
Retailer 7
-
$10,342 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
$10,919 USD
£8,597 GBP
View
B
Retailer 9
-
$13,826 USD
ZAR 223,355 ZAR
View
B
Retailer 10
-
$14,823 USD
€14,117 EUR
View
B
Retailer 11
-
$15,115 USD
A$23,254 AUD
View
B
Retailer 12
-
$17,000 USD
A$26,154 AUD
View
B
Retailer 13
-
$17,104 USD
View
B
Retailer 14
-
$24,868 USD
View
B
Retailer 15
-
$29,460 USD
View
Most Expensive
B
Brilliant Earth
20602767A · Oct 31
$30,990 USD
View
15 more retailers have this diamond
Prices start from $7,173 USDSave up to $23,817 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
15.09ct Cushion
$7,173 USD