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Cushion|Lab Grown|IGI

3.18ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG831615121

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831615121

Diamond specifications and retailer prices

From $1,477 NZD
€793 EUR
As of October 31, 2026
Save $2,698 NZD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,175 NZD at With Clarity · As of October 31, 2026
View at With Clarity

About this 3.18ct lab-grown cushion diamond

This 3.18ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831615121 or 831615121. Listed at 8 retailers as of October 31, 2026, with prices from $1,477 to $4,175, a $2,698 spread on the same certified stone. With Clarity lists it at $4,175. 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
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831615121
Dimensions10.57 × 7.48 × 5.09 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.57 mm7.48 mm3.18 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831615121
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 68.0%

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: Oct 31
Current: $1,477 NZD|Low: $1,122 NZD|High: $4,092 NZD|Avg: $2,675 NZD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
October 31, 2026
Retailer 4$1,122 NZD
Retailer 1$1,477 NZD
Retailer 7$1,611 NZD
Retailer 2$2,821 NZD
Retailer 5$3,238 NZD
Retailer 3$3,445 NZD
Retailer 6$3,756 NZD
With Clarity$4,092 NZD

27 data points across 8 retailers

8 retailers$1,477 NZD to $4,175 NZD

Retailer 1
-
$1,122 NZD
£498 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
$1,477 NZD
€793 EUR
View
A
Retailer 3
-
$1,611 NZD
$908 USD
View
B+
Retailer 4
-
$2,821 NZD
$1,590 USD
View
B+
Retailer 5
-
$3,238 NZD
$1,825 USD
View
B+
Retailer 6
-
$3,445 NZD
£1,529 GBP
View
Retailer 7
-
$3,756 NZD
SGD 2,861 SGD
View
Price last confirmed 18 days ago
Most Expensive
B+
With Clarity
831615121 · Oct 31
$4,175 NZD
$2,353 USD
View
7 more retailers have this diamond
Prices start from $1,477 NZDSave up to $2,698 NZD

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
$1,477 NZD