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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG750599918

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG750599918

Diamond specifications and retailer prices

From HK$1,630 HKD
As of November 6, 2026
Save HK$6,764 HKD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$9,039 HKD at Reve Diamonds · As of October 11, 2026
View at Reve Diamonds

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 top-tier cut grade and certified by IGI LG750599918 or 750599918. Listed at 13 retailers as of November 5, 2026, with a 415% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750599918
Dimensions7.55 × 5.87 × 3.91 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.55 mm5.87 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750599918
Side View
Table 64.0%Crown 28.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$6,035 HKD|Low: HK$1,591 HKD|High: HK$9,039 HKD|Avg: HK$4,326 HKD|-11.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 6, 2026
Retailer 7HK$1,630 HKD
Retailer 5HK$1,763 HKD
Retailer 8HK$2,140 HKD
Retailer 6HK$3,049 HKD
Retailer 12HK$3,166 HKD
Retailer 9HK$3,205 HKD
Retailer 2HK$3,253 HKD
Retailer 4HK$3,746 HKD
Retailer 3HK$4,365 HKD
Retailer 13HK$4,436 HKD
Retailer 1HK$6,035 HKD
Retailer 11HK$6,215 HKD
Retailer 10HK$8,394 HKD
Reve DiamondsHK$9,039 HKD

37 data points across 14 retailers

13 retailersHK$1,630 HKD to HK$8,394 HKD

A
Cheapest Retailer
-
HK$1,630 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,140 HKD
View
A
Retailer 3
-
HK$3,049 HKD
View
A
Retailer 4
-
HK$3,166 HKD
View
A
Retailer 5
-
HK$3,205 HKD
View
A
Retailer 6
-
HK$3,253 HKD
View
A
Retailer 7
-
HK$3,746 HKD
View
B+
Retailer 8
-
HK$4,365 HKD
View
B+
Retailer 9
-
HK$4,436 HKD
View
B+
Retailer 10
-
HK$6,035 HKD
View
B+
Retailer 11
-
HK$6,215 HKD
View
B
Retailer 12
-
HK$8,394 HKD
View
Most Expensive
Reve Diamonds
26DD45DAA · Oct 11
HK$9,039 HKD
$1,153 USD
View
Price last confirmed 26 days ago
12 more retailers have this diamond
Prices start from HK$1,630 HKDSave up to HK$6,764 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
1.28ct Cushion
HK$1,630 HKD