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Radiant|Lab Grown|IGI

15.31ct F VVS2 Radiant Lab Grown Diamond

ID • F/VVS2 • IGI LG797691346

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

Certificate IGI LG797691346

Diamond specifications and retailer prices

From $7,100 AUD
$4,976 USD
As of November 1, 2026
Save $25,792 AUD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $46,974 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 15.31ct lab-grown radiant diamond

This 15.31ct lab-grown radiant 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 LG797691346 or 797691346. Listed at 16 retailers as of October 31, 2026, with a 363% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

15.31
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.3°
Pavilion angle30.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797691346
Dimensions17.87 × 12.02 × 7.67 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.87 mm12.02 mm15.31 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797691346
Side View
Table 69.0%Crown 47.3°Girdle: STK-THKPavilion 30.5°Culet: NoneDepth 63.8%

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: $11,986 AUD|Low: $7,100 AUD|High: $46,260 AUD|Avg: $20,005 AUD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 6$7,100 AUD
Retailer 4$7,494 AUD
Retailer 8$8,454 AUD
Retailer 9$8,454 AUD
Retailer 2$8,517 AUD
Retailer 1$11,986 AUD
Retailer 7$14,445 AUD
Retailer 5$17,800 AUD
Retailer 3$24,030 AUD
Retailer 11$27,058 AUD
Retailer 10$44,876 AUD

41 data points across 11 retailers

16 retailers$7,100 AUD to $32,893 AUD

A
Cheapest Retailer
-
$7,100 AUD
$4,976 USD
A
Retailer 2
-
$7,494 AUD
£4,136 GBP
View
B+
Retailer 3
-
$7,652 AUD
CA$7,448 CAD
View
Retailer 4
-
$8,454 AUD
$5,925 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$8,454 AUD
$5,925 USD
View
B+
Retailer 6
-
$8,517 AUD
$5,969 USD
View
B+
Retailer 7
-
$11,986 AUD
£6,614 GBP
View
B
Retailer 8
-
$12,210 AUD
$8,557 USD
View
B+
Retailer 9
-
$14,445 AUD
ZAR 163,539 ZAR
View
Retailer 10
-
$15,026 AUD
$10,531 USD
View
Price last confirmed 85 days ago
B
Retailer 11
-
$17,800 AUD
View
B
Retailer 12
-
$18,471 AUD
$12,945 USD
View
B
Retailer 13
-
$24,030 AUD
$16,841 USD
View
B
Retailer 14
-
$32,893 AUD
$23,052 USD
View
Retailer 15
-
$44,876 AUD
$31,450 USD
View
Price under review
Most Expensive
Do Amore Diamonds
25-1509702-082 · Nov 2
$46,974 AUD
$32,920 USD
View
Price under review
15 more retailers have this diamond
Prices start from $7,100 AUDSave up to $25,792 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
15.31ct Radiant
$7,100 AUD