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Cushion|Lab Grown|IGI

3.51ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG821699152

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821699152

Diamond specifications and retailer prices

From $1,647 NZD
€884 EUR
As of October 29, 2026
Save $2,896 NZD (64%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,278 NZD at Rare Carat · As of September 9, 2026
View at Rare Carat

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821699152 or 821699152. Listed at 11 retailers as of October 29, 2026, with a 176% 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

3.51
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.6°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821699152
Dimensions11.44 × 7.82 × 5.03 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.44 mm7.82 mm3.51 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821699152
Side View
Table 68.0%Crown 26.6°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 64.3%

Caratlytics Score

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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 29
Current: $5,278 NZD|Low: $1,095 NZD|High: $5,278 NZD|Avg: $3,153 NZD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$1,095 NZD
Retailer 3$1,647 NZD
Retailer 5$1,687 NZD
Retailer 2$1,799 NZD
Retailer 6$2,654 NZD
Retailer 7$3,527 NZD
Retailer 8$4,108 NZD
Retailer 4$4,543 NZD
Retailer 10$4,580 NZD
Rare Carat$5,278 NZD

41 data points across 10 retailers

11 retailers$1,647 NZD to $4,543 NZD

Retailer 1
-
$1,095 NZD
$617 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$1,647 NZD
€884 EUR
View
B+
Retailer 3
-
$1,687 NZD
$951 USD
View
A
Retailer 4
-
$1,799 NZD
£799 GBP
View
A
Retailer 5
-
$2,654 NZD
$1,496 USD
View
B+
Retailer 6
-
$3,527 NZD
$1,988 USD
View
B+
Retailer 7
-
$4,049 NZD
$2,282 USD
View
B+
Retailer 8
-
$4,108 NZD
$2,315 USD
View
B+
Retailer 9
-
$4,543 NZD
£2,016 GBP
View
Retailer 10
-
$4,580 NZD
A$3,971 AUD
View
Price last confirmed 25 days ago
Most Expensive
Rare Carat
30R821699152 · Sep 9
$5,278 NZD
$2,974 USD
View
Price last confirmed 51 days ago
10 more retailers have this diamond
Prices start from $1,647 NZDSave up to $2,896 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
3.51ct Cushion
$1,647 NZD