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Round|Lab Grown|IGI

10.31ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG665404035

Shape and cutting style on the report: Round brilliant

Certificate IGI LG665404035

Diamond specifications and retailer prices

From $2,921 AUD
$2,052 USD
As of October 31, 2026
Save $18,921 AUD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $21,842 AUD at Brilliance · As of November 1, 2026
View at Brilliance

About this 10.31ct lab-grown round diamond

This 10.31ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665404035 or 665404035. Listed at 20 retailers as of October 31, 2026, with prices from $2,921 to $21,842, a $18,921 spread on the same certified stone. Brilliance lists it at $21,842. 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

10.31
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665404035
Dimensions13.92 × 13.84 × 8.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.92 mm13.84 mm10.31 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665404035
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.2%

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 31
Current: $8,157 AUD|Low: $2,849 AUD|High: $20,813 AUD|Avg: $7,339 AUD|-7.5%
Brilliance
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
Retailer 16
November 1, 2026
Retailer 5$2,921 AUD
Retailer 10$3,267 AUD
Retailer 12$4,246 AUD
Retailer 9$4,277 AUD
Retailer 13$4,328 AUD
Retailer 11$4,686 AUD
Retailer 3$5,092 AUD
Retailer 7$5,188 AUD
Retailer 2$5,608 AUD
Retailer 6$6,670 AUD
Brilliance$8,157 AUD
Retailer 16$8,694 AUD
Retailer 14$9,557 AUD
Retailer 15$10,607 AUD
Retailer 8$12,879 AUD
Retailer 4$19,631 AUD

36 data points across 16 retailers

20 retailers$2,921 AUD to $21,842 AUD

Retailer 1
-
$2,698 AUD
$1,895 USD
Price last confirmed 21 days ago
A
Retailer 2
-
$2,921 AUD
$2,052 USD
View
Final sale: no returns
Retailer 3
-
$3,130 AUD
$2,199 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$3,130 AUD
$2,199 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$3,267 AUD
$2,295 USD
View
A
Retailer 6
-
$4,246 AUD
HK$23,300 HKD
View
A
Retailer 7
-
$4,277 AUD
£2,366 GBP
View
B+
Retailer 8
-
$4,328 AUD
$3,040 USD
View
A
Retailer 9
-
$4,686 AUD
ZAR 53,178 ZAR
View
A
Retailer 10
-
$5,092 AUD
$3,577 USD
View
A
Retailer 11
-
$5,608 AUD
View
Retailer 12
-
$5,867 AUD
$4,121 USD
View
Price last confirmed 22 days ago
A
Retailer 13
-
$6,670 AUD
CA$6,507 CAD
View
B+
Retailer 14
-
$8,157 AUD
$5,730 USD
View
B+
Retailer 15
-
$8,694 AUD
$6,107 USD
View
B+
Retailer 16
-
$9,557 AUD
$6,713 USD
View
B+
Retailer 17
-
$10,607 AUD
$7,451 USD
View
Retailer 18
-
$12,879 AUD
$9,047 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$19,631 AUD
$13,790 USD
View
Most Expensive
B
Brilliance
D33543049 · Nov 1
$21,842 AUD
$15,343 USD
View
19 more retailers have this diamond
Prices start from $2,921 AUDSave up to $18,921 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
10.31ct Round
$2,921 AUD