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Cushion|Lab Grown|IGI

15.63ct H VS2 Cushion Lab Grown Diamond

ID • H/VS2 • IGI LG627413260

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG627413260

Diamond specifications and retailer prices

From $4,708 AUD
£2,604 GBP
As of October 30, 2026
Save $21,244 AUD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $25,952 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 15.63ct lab-grown cushion diamond

This 15.63ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG627413260 or 627413260. Listed at 12 retailers as of October 29, 2026, with prices from $4,708 to $25,952, a $21,244 spread on the same certified stone. Brilliant Earth lists it at $25,952. 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

15.63
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627413260
Dimensions14.53 × 13.99 × 8.85 mm
L/W Ratio1.04
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
14.53 mm13.99 mm15.63 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627413260
Side View
Table 64.0%Crown 41.5°Girdle: MED-VTKPavilion 31.7°Culet: NoneDepth 63.3%

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: $25,952 AUD|Low: $4,693 AUD|High: $26,764 AUD|Avg: $12,185 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
October 31, 2026
Retailer 6$4,708 AUD
Retailer 12$5,642 AUD
Retailer 11$5,845 AUD
Retailer 3$6,459 AUD
Retailer 9$7,266 AUD
Retailer 8$7,267 AUD
Retailer 10$9,063 AUD
Retailer 2$9,368 AUD
Retailer 13$16,222 AUD
Retailer 7$18,266 AUD
Retailer 5$19,045 AUD
Retailer 4$20,578 AUD
Brilliant Earth$25,952 AUD

33 data points across 13 retailers

12 retailers$4,708 AUD to $25,952 AUD

A
Cheapest Retailer
-
$4,708 AUD
£2,604 GBP
A
Retailer 2
-
$5,642 AUD
$3,963 USD
View
Final sale: no returns
Retailer 3
-
$5,845 AUD
$4,106 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$6,459 AUD
$4,537 USD
View
A
Retailer 5
-
$7,266 AUD
$5,104 USD
View
B+
Retailer 6
-
$7,267 AUD
$5,105 USD
View
Retailer 7
-
$9,063 AUD
$6,366 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$9,368 AUD
€6,267 EUR
View
B+
Retailer 9
-
$16,222 AUD
$11,395 USD
View
B
Retailer 10
-
$18,266 AUD
$12,831 USD
View
B
Retailer 11
-
$20,578 AUD
$14,455 USD
View
Most Expensive
B
Brilliant Earth
20602538A · Oct 29
$25,952 AUD
$18,230 USD
View
11 more retailers have this diamond
Prices start from $4,708 AUDSave up to $21,244 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
15.63ct Cushion
$4,708 AUD