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Cushion|Lab Grown|IGI

10.63ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG600309118

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG600309118

Diamond specifications and retailer prices

From $2,870 AUD
$2,016 USD
As of November 1, 2026
Save $10,256 AUD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,126 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.63ct lab-grown cushion diamond

This 10.63ct lab-grown cushion 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 LG600309118 or 600309118. Listed at 16 retailers as of October 31, 2026, with prices from $2,870 to $13,126, a $10,256 spread on the same certified stone. Brilliant Earth lists it at $13,126. 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

10.63
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600309118
Dimensions12.49 × 12.22 × 7.66 mm
L/W Ratio1.02
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
12.49 mm12.22 mm10.63 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600309118
Side View
Table 59.0%Crown 39.5°Girdle: THK-VTKPavilion 30.4°Culet: NoneDepth 62.7%

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: $13,126 AUD|Low: $2,870 AUD|High: $13,538 AUD|Avg: $5,269 AUD|-3.0%
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
November 2, 2026
Retailer 3$2,870 AUD
Retailer 12$2,974 AUD
Retailer 11$3,210 AUD
Retailer 13$3,774 AUD
Retailer 2$4,218 AUD
Retailer 9$4,231 AUD
Retailer 7$4,454 AUD
Retailer 10$4,540 AUD
Retailer 8$4,604 AUD
Retailer 6$5,509 AUD
Retailer 4$6,162 AUD
Retailer 5$7,324 AUD
Brilliant Earth$13,126 AUD

43 data points across 13 retailers

16 retailers$2,870 AUD to $13,126 AUD

A
Cheapest Retailer
-
$2,870 AUD
$2,016 USD
Final sale: no returns
Retailer 2
-
$2,974 AUD
$2,089 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$3,210 AUD
$2,255 USD
View
A
Retailer 4
-
$3,774 AUD
$2,651 USD
View
A
Retailer 5
-
$4,218 AUD
£2,333 GBP
View
B+
Retailer 6
-
$4,231 AUD
$2,972 USD
View
A
Retailer 7
-
$4,454 AUD
€2,980 EUR
View
A
Retailer 8
-
$4,540 AUD
$3,189 USD
View
A
Retailer 9
-
$4,604 AUD
ZAR 52,243 ZAR
View
A
Retailer 10
-
$5,509 AUD
View
A
Retailer 11
-
$6,162 AUD
£3,408 GBP
View
B+
Retailer 12
-
$7,324 AUD
$5,145 USD
View
B+
Retailer 13
-
$8,554 AUD
$6,009 USD
View
B+
Retailer 14
-
$9,485 AUD
$6,663 USD
View
B
Retailer 15
-
$10,424 AUD
$7,322 USD
View
Most Expensive
B
Brilliant Earth
10792660A · Oct 31
$13,126 AUD
$9,220 USD
View
15 more retailers have this diamond
Prices start from $2,870 AUDSave up to $10,256 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
10.63ct Cushion
$2,870 AUD