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Cushion|Lab Grown|IGI

3.09ct H SI2 Cushion Lab Grown Diamond

EX • H/SI2 • IGI LG12220503

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12220503

Diamond specifications and retailer prices

From HK$6,176 HKD
As of November 6, 2026
Save HK$25,017 HKD (80%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$31,193 HKD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12220503 or 12220503. Listed at 6 retailers as of November 5, 2026, with prices from HK$6,176 to HK$31,193, a HK$25,017 spread on the same certified stone. Do Amore Diamonds lists it at HK$31,193. 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

3.09
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12220503
Dimensions8.57 × 8.50 × 5.57 mm
L/W Ratio1.01
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
8.57 mm8.50 mm3.09 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12220503
Side View
Table 63.5%Crown 36°Girdle: MED-UNDPavilion 39.3°Culet: NoneDepth 65.5%

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$31,193 HKD|Low: HK$6,176 HKD|High: HK$31,193 HKD|Avg: HK$13,384 HKD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2HK$6,176 HKD
Retailer 6HK$6,889 HKD
Retailer 5HK$6,936 HKD
Retailer 4HK$7,187 HKD
Retailer 3HK$21,137 HKD
Do Amore DiamondsHK$31,193 HKD

25 data points across 6 retailers

6 retailersHK$6,176 HKD to HK$31,193 HKD

A
Cheapest Retailer
-
HK$6,176 HKD
A
Retailer 2
-
HK$6,889 HKD
View
A
Retailer 3
-
HK$6,936 HKD
View
B+
Retailer 4
-
HK$7,187 HKD
View
B
Retailer 5
-
HK$21,137 HKD
View
Most Expensive
B
Do Amore Diamonds
7-1413945 · Nov 5
HK$31,193 HKD
$3,980 USD
View
5 more retailers have this diamond
Prices start from HK$6,176 HKDSave up to HK$25,017 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
3.09ct Cushion
HK$6,176 HKD