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Cushion|Lab Grown|IGI

3.51ct H VS2 Cushion Lab Grown Diamond

VG • H/VS2 • IGI LG583397426

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG583397426

Diamond specifications and retailer prices

From HK$3,515 HKD
$448 USD
As of November 1, 2026
Save HK$2,722 HKD (44%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$14,972 HKD at Rare Carat · As of September 9, 2026
View at Rare Carat

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG583397426 or 583397426. Listed at 4 retailers as of October 30, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.51
Carat
H
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG583397426
Dimensions9.09 × 8.66 × 5.23 mm
L/W Ratio1.05
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
9.09 mm8.66 mm3.51 ctH / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG583397426
Side View
Table 73.0%Crown 37.1°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 60.4%

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: HK$14,972 HKD|Low: HK$3,515 HKD|High: HK$26,832 HKD|Avg: HK$11,127 HKD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 26, 2026
Retailer 4HK$3,515 HKD
Retailer 5HK$5,021 HKD
Retailer 2HK$5,586 HKD
Retailer 3HK$6,237 HKD
Retailer 9HK$6,855 HKD
Retailer 6HK$14,494 HKD
Rare CaratHK$14,972 HKD
Retailer 8HK$16,500 HKD
Retailer 7HK$26,832 HKD

2 data points across 9 retailers

4 retailersHK$3,515 HKD to HK$6,237 HKD

A
Cheapest Retailer
-
HK$3,515 HKD
$448 USD
Final sale: no returns
B+
Retailer 2
-
HK$5,586 HKD
$712 USD
View
B+
Retailer 3
-
HK$6,237 HKD
$795 USD
View
Most Expensive
Rare Carat
56106A_l_583397426 · Sep 9
HK$14,972 HKD
$1,908 USD
View
Price last confirmed 53 days ago
3 more retailers have this diamond
Prices start from HK$3,515 HKDSave up to HK$2,722 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
3.51ct Cushion
HK$3,515 HKD