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Radiant|Lab Grown|IGI

15.51ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG617499488

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG617499488

Diamond specifications and retailer prices

From $4,044 AUD
$2,841 USD
As of October 30, 2026
Save $15,181 AUD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $19,226 AUD at Adiamor · As of October 31, 2026
View at Adiamor

About this 15.51ct lab-grown radiant diamond

This 15.51ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617499488 or 617499488. Listed at 16 retailers as of October 30, 2026, with prices from $4,044 to $19,226, a $15,181 spread on the same certified stone. Adiamor lists it at $19,226. 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

15.51
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.3°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617499488
Dimensions16.36 × 11.67 × 7.63 mm
L/W Ratio1.40
Culet sizeLong
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 mm11.67 mm15.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617499488
Side View
Table 66.0%Crown 27.3°Girdle: MED-STKPavilion 32.6°Culet: LNGDepth 65.4%

Caratlytics Score

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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: Oct 30
Current: $19,226 AUD|Low: $3,882 AUD|High: $19,308 AUD|Avg: $6,353 AUD|-0.4%
Adiamor
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
November 1, 2026
Retailer 12$4,044 AUD
Retailer 11$4,400 AUD
Retailer 3$4,528 AUD
Retailer 5$4,692 AUD
Retailer 9$4,692 AUD
Retailer 6$5,501 AUD
Retailer 8$5,993 AUD
Retailer 13$6,144 AUD
Retailer 2$6,286 AUD
Retailer 10$6,449 AUD
Retailer 14$7,297 AUD
Retailer 7$7,437 AUD
Retailer 4$13,060 AUD
Adiamor$19,226 AUD

41 data points across 14 retailers

16 retailers$4,044 AUD to $19,226 AUD

A
Cheapest Retailer
-
$4,044 AUD
$2,841 USD
A
Retailer 2
-
$4,400 AUD
$3,091 USD
View
A
Retailer 3
-
$4,528 AUD
$3,181 USD
View
Final sale: no returns
A
Retailer 4
-
$4,692 AUD
$3,296 USD
View
Retailer 5
-
$4,692 AUD
$3,296 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$5,501 AUD
$3,864 USD
View
A
Retailer 7
-
$5,993 AUD
$4,210 USD
View
A
Retailer 8
-
$6,144 AUD
$4,316 USD
View
A
Retailer 9
-
$6,286 AUD
£3,477 GBP
View
A
Retailer 10
-
$6,449 AUD
$4,530 USD
View
B+
Retailer 11
-
$7,297 AUD
$5,126 USD
View
B+
Retailer 12
-
$7,437 AUD
€4,975 EUR
View
Retailer 13
-
$9,902 AUD
$6,956 USD
View
Price last confirmed 39 days ago
B
Retailer 14
-
$13,060 AUD
$9,174 USD
View
B
Retailer 15
-
$16,348 AUD
$11,484 USD
View
Most Expensive
B
Adiamor
D-69792673 · Oct 31
$19,226 AUD
$13,505 USD
View
15 more retailers have this diamond
Prices start from $4,044 AUDSave up to $15,181 AUD

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
15.51ct Radiant
$4,044 AUD