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Cushion|Lab Grown|IGI

3.12ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG537238304

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG537238304

Diamond specifications and retailer prices

From $1,114 SGD
As of November 6, 2026
Save $5,153 SGD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,267 SGD at Do Amore Diamonds · As of November 6, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG537238304 or 537238304. Listed at 12 retailers as of November 6, 2026, with prices from $1,114 to $6,267, a $5,153 spread on the same certified stone. Do Amore Diamonds lists it at $6,267. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.12
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537238304
Dimensions8.32 × 8.23 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.32 mm8.23 mm3.12 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537238304
Side View
Table 63.5%Crown 35.5°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 70.0%

Caratlytics Score

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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 6
Current: $6,267 SGD|Low: $865 SGD|High: $6,267 SGD|Avg: $2,268 SGD|+29.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$1,114 SGD
Retailer 7$1,115 SGD
Retailer 2$1,174 SGD
Retailer 10$1,330 SGD
Retailer 11$1,350 SGD
Retailer 5$1,496 SGD
Retailer 3$1,981 SGD
Retailer 8$2,544 SGD
Retailer 12$3,269 SGD
Retailer 4$3,295 SGD
Retailer 6$4,178 SGD
Do Amore Diamonds$6,267 SGD

35 data points across 12 retailers

12 retailers$1,114 SGD to $6,267 SGD

A
Cheapest Retailer
-
$1,114 SGD
A
Retailer 2
-
$1,115 SGD
View
A
Retailer 3
-
$1,174 SGD
View
A
Retailer 4
-
$1,330 SGD
View
B+
Retailer 5
-
$1,350 SGD
View
B+
Retailer 6
-
$1,496 SGD
View
B+
Retailer 7
-
$1,981 SGD
View
B+
Retailer 8
-
$2,544 SGD
View
B
Retailer 9
-
$3,269 SGD
View
B
Retailer 10
-
$3,295 SGD
View
B
Retailer 11
-
$4,178 SGD
View
Most Expensive
B
Do Amore Diamonds
27-18523B7C3 · Nov 6
$6,267 SGD
$4,890 USD
View
11 more retailers have this diamond
Prices start from $1,114 SGDSave up to $5,153 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
$1,114 SGD