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Radiant|Lab Grown|IGI

15.09ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG758559978

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG758559978

Diamond specifications and retailer prices

From $2,254 USD
£1,775 GBP
As of November 2, 2026
Save $12,906 USD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,160 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 15.09ct lab-grown radiant diamond

This 15.09ct lab-grown radiant 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 LG758559978 or 758559978. Listed at 19 retailers as of November 2, 2026, with prices from $2,254 to $15,160, a $12,906 spread on the same certified stone. Brilliant Earth lists it at $15,160. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23.9°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758559978
Dimensions12.40 × 12.40 × 7.95 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.40 mm12.40 mm15.09 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758559978
Side View
Table 61.0%Crown 23.9°Girdle: Slightly ThickPavilion 32.5°Culet: NoneDepth 64.1%

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 2
Current: $15,160 USD|Low: $2,254 USD|High: $15,630 USD|Avg: $7,277 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 19
November 2, 2026
Retailer 12$2,254 USD
Retailer 14$2,632 USD
Retailer 9$2,709 USD
Retailer 16$2,806 USD
Retailer 5$3,375 USD
Retailer 3$3,820 USD
Retailer 13$3,833 USD
Retailer 18$3,858 USD
Retailer 2$4,081 USD
Retailer 11$4,238 USD
Retailer 4$4,345 USD
Retailer 19$4,482 USD
Retailer 15$5,200 USD
Retailer 10$6,475 USD
Retailer 7$7,891 USD
Retailer 8$9,797 USD
Retailer 17$10,768 USD
Retailer 6$14,295 USD
Brilliant Earth$15,160 USD

28 data points across 19 retailers

19 retailers$2,254 USD to $15,160 USD

A
Cheapest Retailer
-
$2,254 USD
£1,775 GBP
A
Retailer 2
-
$2,632 USD
View
A
Retailer 3
-
$2,709 USD
View
Final sale: no returns
A
Retailer 4
-
$2,806 USD
View
A
Retailer 5
-
$3,375 USD
View
A
Retailer 6
-
$3,820 USD
View
A
Retailer 7
-
$3,833 USD
£3,018 GBP
View
A
Retailer 8
-
$3,858 USD
View
A
Retailer 9
-
$4,081 USD
View
B+
Retailer 10
-
$4,238 USD
View
A
Retailer 11
-
$4,345 USD
ZAR 70,188 ZAR
View
A
Retailer 12
-
$4,482 USD
€4,269 EUR
View
B+
Retailer 13
-
$5,200 USD
A$8,000 AUD
View
Retailer 14
-
$6,475 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
$7,891 USD
View
B
Retailer 16
-
$9,797 USD
View
B
Retailer 17
-
$10,768 USD
A$16,566 AUD
View
B
Retailer 18
-
$14,295 USD
View
Most Expensive
B
Brilliant Earth
18212470A · Nov 2
$15,160 USD
View
18 more retailers have this diamond
Prices start from $2,254 USDSave up to $12,906 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 Radiant
$2,254 USD