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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 $1,265 AUD
As of November 6, 2026
Save $5,852 AUD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,117 AUD 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 $1,265 to $7,117, a $5,852 spread on the same certified stone. Do Amore Diamonds lists it at $7,117. 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

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 6
Current: $7,117 AUD|Low: $982 AUD|High: $7,117 AUD|Avg: $2,575 AUD|+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$1,265 AUD
Retailer 7$1,266 AUD
Retailer 2$1,333 AUD
Retailer 10$1,511 AUD
Retailer 11$1,533 AUD
Retailer 5$1,698 AUD
Retailer 3$2,250 AUD
Retailer 8$2,889 AUD
Retailer 12$3,713 AUD
Retailer 4$3,742 AUD
Retailer 6$4,745 AUD
Do Amore Diamonds$7,117 AUD

35 data points across 12 retailers

12 retailers$1,265 AUD to $7,117 AUD

A
Cheapest Retailer
-
$1,265 AUD
A
Retailer 2
-
$1,266 AUD
View
A
Retailer 3
-
$1,333 AUD
View
A
Retailer 4
-
$1,511 AUD
View
B+
Retailer 5
-
$1,533 AUD
View
B+
Retailer 6
-
$1,698 AUD
View
B+
Retailer 7
-
$2,250 AUD
View
B+
Retailer 8
-
$2,889 AUD
View
B
Retailer 9
-
$3,713 AUD
View
B
Retailer 10
-
$3,742 AUD
View
B
Retailer 11
-
$4,745 AUD
View
Most Expensive
B
Do Amore Diamonds
27-18523B7C3 · Nov 6
$7,117 AUD
$4,890 USD
View
11 more retailers have this diamond
Prices start from $1,265 AUDSave up to $5,852 AUD

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
$1,265 AUD