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Cushion|Lab Grown|IGI

3.12ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG598370873

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG598370873

Diamond specifications and retailer prices

From $527 SGD
$411 USD
As of November 1, 2026
Save $3,650 SGD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,177 SGD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3.12ct lab-grown cushion diamond

This 3.12ct 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 LG598370873 or 598370873. Listed at 10 retailers as of November 1, 2026, with prices from $527 to $4,177, a $3,650 spread on the same certified stone. Do Amore Diamonds lists it at $4,177. 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

3.12
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598370873
Dimensions8.54 × 8.18 × 5.26 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.54 mm8.18 mm3.12 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598370873
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 64.3%

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: Nov 1
Current: $4,177 SGD|Low: $375 SGD|High: $4,177 SGD|Avg: $1,627 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$527 SGD
Retailer 5$782 SGD
Retailer 6$930 SGD
Retailer 8$989 SGD
Retailer 3$1,022 SGD
Retailer 9$1,142 SGD
Retailer 2$1,401 SGD
Retailer 11$1,874 SGD
Retailer 10$2,262 SGD
Retailer 4$2,512 SGD
Do Amore Diamonds$4,177 SGD

22 data points across 11 retailers

10 retailers$527 SGD to $4,177 SGD

A
Cheapest Retailer
-
$527 SGD
$411 USD
Final sale: no returns
A
Retailer 2
-
$782 SGD
$610 USD
View
B+
Retailer 3
-
$930 SGD
$726 USD
View
A
Retailer 4
-
$989 SGD
$772 USD
View
A
Retailer 5
-
$1,142 SGD
$891 USD
View
A
Retailer 6
-
$1,401 SGD
ZAR 17,662 ZAR
View
B+
Retailer 7
-
$2,262 SGD
$1,765 USD
View
Retailer 8
-
$2,396 SGD
$1,870 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$2,512 SGD
£1,544 GBP
View
Most Expensive
B
Do Amore Diamonds
27-7EEA40837 · Nov 2
$4,177 SGD
$3,260 USD
View
9 more retailers have this diamond
Prices start from $527 SGDSave up to $3,650 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
3.12ct Cushion
$527 SGD