CaratHunter
Plans
Cushion|Lab Grown|IGI

3.15ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG594312934

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG594312934

Diamond specifications and retailer prices

From $848 USD
As of November 2, 2026
Save $1,660 USD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,508 USD at MOH London · As of November 3, 2026
View at MOH London

About this 3.15ct lab-grown cushion diamond

This 3.15ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG594312934 or 594312934. Listed at 7 retailers as of November 2, 2026, with prices from $848 to $2,508, a $1,660 spread on the same certified stone. MOH London lists it at $2,508. 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

3.15
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594312934
Dimensions8.62 × 8.40 × 5.64 mm
L/W Ratio1.03
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.
Top View
8.62 mm8.40 mm3.15 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594312934
Side View
Table 61.0%Crown 35°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 67.1%

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 2
Current: $2,508 USD|Low: $610 USD|High: $2,537 USD|Avg: $1,308 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 9$610 USD
Retailer 8$804 USD
Retailer 6$848 USD
Retailer 5$855 USD
Retailer 3$921 USD
Retailer 2$1,304 USD
Retailer 4$1,870 USD
Retailer 7$2,076 USD
MOH London$2,508 USD

21 data points across 9 retailers

7 retailers$848 USD to $2,508 USD

A
Cheapest Retailer
-
$848 USD
B+
Retailer 2
-
$855 USD
View
A
Retailer 3
-
$921 USD
View
A
Retailer 4
-
$1,304 USD
ZAR 21,069 ZAR
View
B+
Retailer 5
-
$1,870 USD
View
B+
Retailer 6
-
$2,076 USD
View
Most Expensive
B+
MOH London
LG594312934 · Nov 3
$2,508 USD
£1,975 GBP
View
6 more retailers have this diamond
Prices start from $848 USDSave up to $1,660 USD

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
3.15ct Cushion
$848 USD