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Cushion|Lab Grown|IGI

3.18ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG526268226

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG526268226

Diamond specifications and retailer prices

From $8,890 NZD
As of November 3, 2026
12 retailers carry this diamond
Most expensive: $49,751 NZD at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

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 LG526268226 or 526268226. Listed at 12 retailers as of November 3, 2026. 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
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526268226
Dimensions8.30 × 8.00 × 5.35 mm
L/W Ratio1.04
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
8.30 mm8.00 mm3.18 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526268226
Side View
Table 61.5%Crown 36.1°Girdle: THK-VTKPavilion 33.4°Culet: NoneDepth 66.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 3
Current: $49,751 NZD|Low: $8,890 NZD|High: $49,770 NZD|Avg: $28,587 NZD|+2.2%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 7$8,890 NZD
Retailer 9$20,621 NZD
Retailer 6$21,359 NZD
Retailer 8$22,796 NZD
Retailer 3$25,164 NZD
Retailer 2$25,374 NZD
Retailer 10$30,590 NZD
Retailer 5$33,549 NZD
Retailer 4$49,208 NZD
Cape Diamonds$49,751 NZD

38 data points across 10 retailers

12 retailers

B
Cheapest Retailer
-
$8,890 NZD
Retailer 2
-
$19,652 NZD
View
Price under review
Most Expensive
Cape Diamonds
cert_526268226 · Nov 3
$49,751 NZD
ZAR 452,039 ZAR
View
Price under review
2 more retailers have this diamond
Prices start from $8,890 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
3.18ct Cushion
$8,890 NZD