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Cushion|Lab Grown|IGI

3.10ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG591312921

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG591312921

Diamond specifications and retailer prices

From $3,229 NZD
$1,820 USD
As of November 2, 2026
Save $8,788 NZD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $15,626 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG591312921 or 591312921. Listed at 10 retailers as of November 1, 2026, with a 272% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.10
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591312921
Dimensions8.76 × 8.33 × 5.56 mm
L/W Ratio1.05
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
8.76 mm8.33 mm3.10 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591312921
Side View
Table 62.0%Crown 32.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $6,102 NZD|Low: $2,768 NZD|High: $23,793 NZD|Avg: $9,563 NZD|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 2, 2026
Retailer 7$3,229 NZD
Retailer 9$3,875 NZD
Retailer 1$6,102 NZD
Retailer 8$6,285 NZD
Retailer 4$6,628 NZD
Retailer 5$7,967 NZD
Retailer 10$8,464 NZD
Retailer 6$10,912 NZD
Retailer 3$12,017 NZD
Taylor and Hart$15,626 NZD
Retailer 2$23,793 NZD

24 data points across 11 retailers

10 retailers$3,229 NZD to $12,017 NZD

B+
Cheapest Retailer
-
$3,229 NZD
$1,820 USD
B
Retailer 2
-
$6,102 NZD
£2,708 GBP
View
B
Retailer 3
-
$6,285 NZD
$3,542 USD
View
B
Retailer 4
-
$6,628 NZD
CA$5,188 CAD
View
B
Retailer 5
-
$7,967 NZD
$4,490 USD
View
B
Retailer 6
-
$8,464 NZD
£3,756 GBP
View
B
Retailer 7
-
$10,912 NZD
$6,150 USD
View
B
Retailer 8
-
$12,017 NZD
£5,333 GBP
View
Most Expensive
Taylor and Hart
Z1B8B2S · Oct 31
$15,626 NZD
$8,807 USD
View
Price under review
8 more retailers have this diamond
Prices start from $3,229 NZDSave up to $8,788 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.

B+
3.10ct Cushion
$3,229 NZD