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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 HK$6,811 HKD
As of November 6, 2026
Save HK$31,514 HKD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$38,325 HKD 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 HK$6,811 to HK$38,325, a HK$31,514 spread on the same certified stone. Do Amore Diamonds lists it at HK$38,325. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$38,325 HKD|Low: HK$5,290 HKD|High: HK$38,325 HKD|Avg: HK$13,869 HKD|+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 9HK$6,811 HKD
Retailer 7HK$6,819 HKD
Retailer 2HK$7,179 HKD
Retailer 10HK$8,135 HKD
Retailer 11HK$8,253 HKD
Retailer 5HK$9,146 HKD
Retailer 3HK$12,117 HKD
Retailer 8HK$15,557 HKD
Retailer 12HK$19,993 HKD
Retailer 4HK$20,150 HKD
Retailer 6HK$25,550 HKD
Do Amore DiamondsHK$38,325 HKD

35 data points across 12 retailers

12 retailersHK$6,811 HKD to HK$38,325 HKD

A
Cheapest Retailer
-
HK$6,811 HKD
A
Retailer 2
-
HK$6,819 HKD
View
A
Retailer 3
-
HK$7,179 HKD
View
A
Retailer 4
-
HK$8,135 HKD
View
B+
Retailer 5
-
HK$8,253 HKD
View
B+
Retailer 6
-
HK$9,146 HKD
View
B+
Retailer 7
-
HK$12,117 HKD
View
B+
Retailer 8
-
HK$15,557 HKD
View
B
Retailer 9
-
HK$19,993 HKD
View
B
Retailer 10
-
HK$20,150 HKD
View
B
Retailer 11
-
HK$25,550 HKD
View
Most Expensive
B
Do Amore Diamonds
27-18523B7C3 · Nov 6
HK$38,325 HKD
$4,890 USD
View
11 more retailers have this diamond
Prices start from HK$6,811 HKDSave up to HK$31,514 HKD

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
HK$6,811 HKD