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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 $698 USD
As of October 29, 2026
Save $612 USD (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,310 USD 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 $698 to $1,310, a $612 spread on the same certified stone. Loose Grown Diamond lists it at $1,310. 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
Color
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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $1,310 USD|Low: $698 USD|High: $3,060 USD|Avg: $1,895 USD|+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$698 USD
Retailer 8$1,215 USD
Retailer 7$1,234 USD
Loose Grown Diamond$1,310 USD
Retailer 3$1,930 USD
Retailer 6$2,271 USD
Retailer 4$2,721 USD
Retailer 5$2,726 USD
Retailer 9$3,060 USD

5 data points across 9 retailers

2 retailers$698 USD to $1,310 USD

A
Cheapest Retailer
-
$698 USD
Final sale: no returns
Most Expensive
B+
Loose Grown Diamond
817629800 · Oct 28
$1,310 USD
View
1 more retailer has this diamond
Prices start from $698 USDSave up to $612 USD

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
$698 USD