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Cushion|Lab Grown|IGI

3.10ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG838612217

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

Certificate IGI LG838612217

Diamond specifications and retailer prices

From $1,091 NZD
$614 USD
As of October 31, 2026
Save $6,142 NZD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,394 NZD at Brilliant Earth · As of October 15, 2026
View at Brilliant Earth

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838612217 or 838612217. Listed at 15 retailers as of October 29, 2026, with a 563% 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
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838612217
Dimensions8.33 × 8.30 × 5.55 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.33 mm8.30 mm3.10 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838612217
Side View
Table 62.0%Crown 32.7°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 66.9%

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: $1,405 NZD|Low: $1,091 NZD|High: $5,510 NZD|Avg: $2,884 NZD|-1.4%
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
November 1, 2026
Retailer 13$1,091 NZD
Retailer 11$1,244 NZD
Retailer 1$1,405 NZD
Retailer 5$1,550 NZD
Retailer 6$1,758 NZD
Retailer 8$2,388 NZD
Retailer 7$2,540 NZD
Retailer 2$2,636 NZD
Retailer 12$4,042 NZD
Retailer 3$4,384 NZD
Retailer 10$4,708 NZD
Retailer 4$5,060 NZD
Retailer 9$5,447 NZD

21 data points across 13 retailers

15 retailers$1,091 NZD to $7,234 NZD

A
Cheapest Retailer
-
$1,091 NZD
$614 USD
Final sale: no returns
A
Retailer 2
-
$1,244 NZD
$700 USD
View
A
Retailer 3
-
$1,405 NZD
£623 GBP
View
B+
Retailer 4
-
$1,550 NZD
$872 USD
View
A
Retailer 5
-
$1,758 NZD
€942 EUR
View
Retailer 6
-
$2,388 NZD
A$2,067 AUD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$2,540 NZD
$1,429 USD
View
A
Retailer 8
-
$2,636 NZD
$1,483 USD
View
B+
Retailer 9
-
$4,042 NZD
$2,274 USD
View
Retailer 10
-
$4,384 NZD
A$3,795 AUD
View
Price last confirmed 32 days ago
B+
Retailer 11
-
$4,708 NZD
£2,086 GBP
View
B
Retailer 12
-
$5,060 NZD
$2,847 USD
View
Retailer 13
-
$5,447 NZD
$3,065 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
$7,234 NZD
$4,070 USD
View
Most Expensive
Brilliant Earth
21764321A · Oct 15
$7,394 NZD
$4,160 USD
View
Price last confirmed 17 days ago
14 more retailers have this diamond
Prices start from $1,091 NZDSave up to $6,142 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
3.10ct Cushion
$1,091 NZD