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Cushion|Lab Grown|IGI

3.17ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG11865603

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG11865603

Diamond specifications and retailer prices

From $1,167 SGD
$911 USD
As of November 2, 2026
Save $2,254 SGD (66%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,421 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.17ct lab-grown cushion diamond

This 3.17ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG11865603 or 11865603. Listed at 2 retailers as of November 2, 2026, with prices from $1,167 to $3,421, a $2,254 spread on the same certified stone. Brilliant Earth lists it at $3,421. 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

3.17
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG11865603
Dimensions8.48 × 8.47 × 5.65 mm
L/W Ratio1.00
Culet sizeNone
Cert comments
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Top View
8.48 mm8.47 mm3.17 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG11865603
Side View
Table 62.0%Crown 35°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
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 2
Current: $3,421 SGD|Low: $1,101 SGD|High: $3,421 SGD|Avg: $2,427 SGD|+7.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
September 23, 2026
Retailer 3$1,157 SGD
Retailer 2$1,167 SGD
Retailer 4$3,241 SGD
Brilliant Earth$3,421 SGD

10 data points across 4 retailers

2 retailers$1,167 SGD to $3,421 SGD

A
Cheapest Retailer
-
$1,167 SGD
$911 USD
Most Expensive
B
Brilliant Earth
3880907Y · Nov 2
$3,421 SGD
$2,670 USD
View
1 more retailer has this diamond
Prices start from $1,167 SGDSave up to $2,254 SGD

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
3.17ct Cushion
$1,167 SGD