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Cushion|Lab Grown|IGI

0.90ct I SI1 Cushion Lab Grown Diamond

VG • I/SI1 • IGI LG418020653

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG418020653

Diamond specifications and retailer prices

From HK$4,770 HKD
$608 USD
As of November 1, 2026
Save HK$3,771 HKD (44%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$8,541 HKD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 0.9ct lab-grown cushion diamond

This 0.9ct lab-grown cushion sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG418020653 or 418020653. Listed at 2 retailers as of October 30, 2026, with prices from HK$4,770 to HK$8,541, a HK$3,771 spread on the same certified stone. Diamond Exchange Canada lists it at HK$8,541. 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

0.90
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle39.2°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG418020653
Dimensions5.78 × 5.60 × 3.37 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
blue nuance
Top View
5.78 mm5.60 mm0.90 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG418020653
Side View
Table 56.5%Crown 39.2°Girdle: STK-VTKPavilion 31.8°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$8,541 HKD|Low: HK$1,883 HKD|High: HK$12,684 HKD|Avg: HK$7,965 HKD|-4.7%
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
September 30, 2026
Retailer 4HK$3,828 HKD
Retailer 2HK$4,770 HKD
Diamond Exchange CanadaHK$8,541 HKD
Retailer 3HK$12,565 HKD

41 data points across 4 retailers

2 retailersHK$4,770 HKD to HK$8,541 HKD

B+
Cheapest Retailer
-
HK$4,770 HKD
$608 USD
Most Expensive
B+
Diamond Exchange Canada
1867369673 · Oct 30
HK$8,541 HKD
CA$1,512 CAD
View
1 more retailer has this diamond
Prices start from HK$4,770 HKDSave up to HK$3,771 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.

B+
0.90ct Cushion
HK$4,770 HKD