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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG612315016

Certificate IGI LG612315016

Diamond specifications and retailer prices

From HK$5,518 HKD
As of November 6, 2026
Save HK$2,163 HKD (28%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$7,681 HKD at Kay Jewelers · As of November 5, 2026
View at Kay Jewelers

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG612315016 or 612315016. Listed at 4 retailers as of November 5, 2026, with prices from HK$5,518 to HK$7,681, a HK$2,163 spread on the same certified stone. Kay Jewelers lists it at HK$7,681. 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

1.28
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG612315016
Dimensions7.39 × 5.92 × 3.70 mm
L/W Ratio1.25
Top View
7.39 mm5.92 mm1.28 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG612315016
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.5%

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 6
Current: HK$7,681 HKD|Low: HK$5,518 HKD|High: HK$10,267 HKD|Avg: HK$7,561 HKD
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2HK$5,518 HKD
Retailer 3HK$5,518 HKD
Kay JewelersHK$7,681 HKD
Retailer 4HK$7,681 HKD

3 data points across 4 retailers

4 retailersHK$5,518 HKD to HK$7,681 HKD

B+
Cheapest Retailer
-
HK$5,518 HKD
B+
Retailer 2
-
HK$5,518 HKD
View
B
Retailer 3
-
HK$7,681 HKD
View
Most Expensive
B
Kay Jewelers
250848919 · Nov 5
HK$7,681 HKD
$980 USD
View
3 more retailers have this diamond
Prices start from HK$5,518 HKDSave up to HK$2,163 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+
1.28ct Cushion
HK$5,518 HKD