CaratHunter
Plans
Cushion|Lab Grown|IGI

15.65ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG627413256

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG627413256

Diamond specifications and retailer prices

From $5,583 AUD
£3,088 GBP
As of November 1, 2026
Save $20,028 AUD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $25,611 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.65ct lab-grown cushion diamond

This 15.65ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG627413256 or 627413256. Listed at 14 retailers as of October 31, 2026, with prices from $5,583 to $25,611, a $20,028 spread on the same certified stone. Brilliant Earth lists it at $25,611. 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

15.65
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627413256
Dimensions14.80 × 14.01 × 8.74 mm
L/W Ratio1.06
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
14.80 mm14.01 mm15.65 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627413256
Side View
Table 62.0%Crown 39.7°Girdle: MED-THKPavilion 31.2°Culet: NoneDepth 62.4%

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: $25,611 AUD|Low: $5,581 AUD|High: $27,376 AUD|Avg: $12,719 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
Retailer 14
November 1, 2026
Retailer 7$5,583 AUD
Retailer 3$6,711 AUD
Retailer 14$6,951 AUD
Retailer 5$7,342 AUD
Retailer 9$8,100 AUD
Retailer 12$8,344 AUD
Retailer 10$10,759 AUD
Retailer 13$10,761 AUD
Retailer 8$11,254 AUD
Retailer 2$13,107 AUD
Retailer 11$16,924 AUD
Retailer 4$19,311 AUD
Retailer 6$24,737 AUD
Brilliant Earth$25,611 AUD

36 data points across 14 retailers

14 retailers$5,583 AUD to $25,611 AUD

A
Cheapest Retailer
-
$5,583 AUD
£3,088 GBP
A
Retailer 2
-
$6,711 AUD
$4,714 USD
View
Final sale: no returns
Retailer 3
-
$6,951 AUD
$4,883 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$7,342 AUD
$5,157 USD
View
A
Retailer 5
-
$8,100 AUD
$5,690 USD
View
A
Retailer 6
-
$8,344 AUD
$5,861 USD
View
A
Retailer 7
-
$10,759 AUD
ZAR 122,097 ZAR
View
B+
Retailer 8
-
$10,761 AUD
$7,559 USD
View
A
Retailer 9
-
$11,254 AUD
€7,529 EUR
View
B+
Retailer 10
-
$13,107 AUD
View
B+
Retailer 11
-
$16,924 AUD
$11,888 USD
View
B
Retailer 12
-
$19,311 AUD
$13,565 USD
View
B
Retailer 13
-
$24,737 AUD
$17,376 USD
View
Most Expensive
B
Brilliant Earth
20602619A · Oct 31
$25,611 AUD
$17,990 USD
View
13 more retailers have this diamond
Prices start from $5,583 AUDSave up to $20,028 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
15.65ct Cushion
$5,583 AUD