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Cushion|Lab Grown|IGI

3.18ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG526268231

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG526268231

Diamond specifications and retailer prices

From $659 USD
As of October 31, 2026
Save $2,519 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,178 USD at MOH London · As of October 26, 2026
View at MOH London

About this 3.18ct lab-grown cushion diamond

This 3.18ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG526268231 or 526268231. Listed at 14 retailers as of October 26, 2026, with prices from $659 to $3,178, a $2,519 spread on the same certified stone. MOH London lists it at $3,178. 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

3.18
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle29.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526268231
Dimensions8.74 × 8.54 × 5.61 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
8.74 mm8.54 mm3.18 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG526268231
Side View
Table 63.0%Crown 29.4°Girdle: MED-VTKPavilion 41°Culet: NoneDepth 65.7%

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: Oct 31
Current: $3,178 USD|Low: $623 USD|High: $3,212 USD|Avg: $1,488 USD|+5.9%
MOH London
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 1, 2026
Retailer 3$659 USD
Retailer 9$731 USD
Retailer 2$814 USD
Retailer 8$845 USD
Retailer 13$1,009 USD
Retailer 10$1,124 USD
Retailer 6$1,134 USD
Retailer 11$1,187 USD
Retailer 7$1,588 USD
Retailer 12$2,134 USD
Retailer 5$2,366 USD
Retailer 4$2,437 USD
MOH London$3,178 USD

44 data points across 13 retailers

14 retailers$659 USD to $3,178 USD

A
Cheapest Retailer
-
$659 USD
Final sale: no returns
Retailer 2
-
$731 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$814 USD
£641 GBP
View
A
Retailer 4
-
$845 USD
View
A
Retailer 5
-
$1,009 USD
View
A
Retailer 6
-
$1,124 USD
View
A
Retailer 7
-
$1,134 USD
£893 GBP
View
A
Retailer 8
-
$1,187 USD
View
A
Retailer 9
-
$1,588 USD
ZAR 25,653 ZAR
View
B+
Retailer 10
-
$2,134 USD
£1,680 GBP
View
B+
Retailer 11
-
$2,366 USD
View
B+
Retailer 12
-
$2,406 USD
HK$18,800 HKD
View
B
Retailer 13
-
$2,437 USD
View
Most Expensive
B
MOH London
LG526268231 · Oct 26
$3,178 USD
£2,502 GBP
View
13 more retailers have this diamond
Prices start from $659 USDSave up to $2,519 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
3.18ct Cushion
$659 USD