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Cushion|Lab Grown|IGI

3.51ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG727580837

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG727580837

Diamond specifications and retailer prices

From $1,479 NZD
$832 USD
As of November 1, 2026
Save $5,319 NZD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,798 NZD at Rare Carat · As of November 1, 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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG727580837 or 727580837. Listed at 16 retailers as of November 1, 2026, with prices from $1,479 to $6,798, a $5,319 spread on the same certified stone. Rare Carat lists it at $6,798. 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
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727580837
Dimensions8.62 × 8.55 × 5.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.62 mm8.55 mm3.51 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727580837
Side View
Table 62.0%Crown 35.2°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 66.9%

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: Nov 1
Current: $2,460 NZD|Low: $1,479 NZD|High: $6,090 NZD|Avg: $3,294 NZD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 4$1,479 NZD
Retailer 2$1,532 NZD
Retailer 9$1,777 NZD
Retailer 15$2,231 NZD
Retailer 1$2,460 NZD
Retailer 3$2,483 NZD
Retailer 13$2,488 NZD
Retailer 11$2,521 NZD
Retailer 12$3,460 NZD
Retailer 8$3,561 NZD
Retailer 14$3,995 NZD
Retailer 6$4,767 NZD
Retailer 5$5,202 NZD
Retailer 7$5,284 NZD
Retailer 10$6,018 NZD

33 data points across 15 retailers

16 retailers$1,479 NZD to $6,798 NZD

A
Cheapest Retailer
-
$1,479 NZD
$832 USD
Final sale: no returns
Retailer 2
-
$1,532 NZD
$862 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$1,777 NZD
£787 GBP
View
A
Retailer 4
-
$2,231 NZD
$1,255 USD
View
A
Retailer 5
-
$2,460 NZD
£1,090 GBP
View
A
Retailer 6
-
$2,483 NZD
$1,397 USD
View
A
Retailer 7
-
$2,488 NZD
$1,400 USD
View
A
Retailer 8
-
$2,521 NZD
€1,351 EUR
View
B+
Retailer 9
-
$3,460 NZD
A$2,995 AUD
View
B+
Retailer 10
-
$3,561 NZD
ZAR 32,367 ZAR
View
B+
Retailer 11
-
$3,995 NZD
$2,248 USD
View
B+
Retailer 12
-
$4,767 NZD
£2,112 GBP
View
B
Retailer 13
-
$5,202 NZD
$2,927 USD
View
B
Retailer 14
-
$5,284 NZD
$2,973 USD
View
B
Retailer 15
-
$6,018 NZD
£2,666 GBP
View
Most Expensive
B
Rare Carat
M6-31p1_l_727580837 · Nov 1
$6,798 NZD
$3,825 USD
View
15 more retailers have this diamond
Prices start from $1,479 NZDSave up to $5,319 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
$1,479 NZD