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Cushion|Lab Grown|IGI

3.15ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG817629800

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG817629800

Diamond specifications and retailer prices

From $1,238 NZD
$698 USD
As of October 29, 2026
Save $1,086 NZD (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,324 NZD at Loose Grown Diamond · As of October 28, 2026
View at Loose Grown Diamond

About this 3.15ct lab-grown cushion diamond

This 3.15ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG817629800 or 817629800. Listed at 2 retailers as of October 28, 2026, with prices from $1,238 to $2,324, a $1,086 spread on the same certified stone. Loose Grown Diamond lists it at $2,324. 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

3.15
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle51°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817629800
Dimensions10.29 × 6.80 × 4.54 mm
L/W Ratio1.51
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.29 mm6.80 mm3.15 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817629800
Side View
Table 64.0%Crown 37.6°Girdle: MED-STKPavilion 51°Culet: LargeDepth 66.8%

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 29
Current: $2,324 NZD|Low: $1,238 NZD|High: $5,429 NZD|Avg: $3,362 NZD|+26.6%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 16, 2026
Retailer 2$1,238 NZD
Retailer 8$2,156 NZD
Retailer 7$2,189 NZD
Loose Grown Diamond$2,324 NZD
Retailer 3$3,424 NZD
Retailer 6$4,029 NZD
Retailer 4$4,828 NZD
Retailer 5$4,836 NZD
Retailer 9$5,429 NZD

5 data points across 9 retailers

2 retailers$1,238 NZD to $2,324 NZD

A
Cheapest Retailer
-
$1,238 NZD
$698 USD
Final sale: no returns
Most Expensive
B+
Loose Grown Diamond
817629800 · Oct 28
$2,324 NZD
$1,310 USD
View
1 more retailer has this diamond
Prices start from $1,238 NZDSave up to $1,086 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
3.15ct Cushion
$1,238 NZD