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Cushion|Lab Grown|IGI

1.28ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG770608936

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG770608936

Diamond specifications and retailer prices

From HK$1,954 HKD
$249 USD
As of November 1, 2026
Save HK$7,992 HKD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$9,946 HKD at Reve Diamonds · As of November 1, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG770608936 or 770608936. Listed at 19 retailers as of November 1, 2026, with prices from HK$1,954 to HK$9,946, a HK$7,992 spread on the same certified stone. Reve Diamonds lists it at HK$9,946. 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
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770608936
Dimensions5.40 × 5.40 × 3.74 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.40 mm5.40 mm1.28 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770608936
Side View
Table 63.0%Crown 39.7°Girdle: STK-VTKPavilion 34.1°Culet: NoneDepth 69.3%

Caratlytics Score

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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 1
Current: HK$4,045 HKD|Low: HK$1,954 HKD|High: HK$9,180 HKD|Avg: HK$4,826 HKD|+4.6%
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
November 2, 2026
Retailer 5HK$1,954 HKD
Retailer 12HK$2,173 HKD
Retailer 2HK$2,919 HKD
Retailer 7HK$3,501 HKD
Retailer 6HK$3,749 HKD
Retailer 1HK$4,045 HKD
Retailer 4HK$4,088 HKD
Retailer 10HK$5,299 HKD
Retailer 13HK$5,657 HKD
Retailer 3HK$5,806 HKD
Retailer 9HK$6,339 HKD
Retailer 8HK$7,768 HKD
Retailer 11HK$8,709 HKD

42 data points across 13 retailers

19 retailersHK$1,954 HKD to HK$9,946 HKD

A
Cheapest Retailer
-
HK$1,954 HKD
$249 USD
Final sale: no returns
Retailer 2
-
HK$2,173 HKD
$277 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
HK$2,410 HKD
View
B+
Retailer 4
-
HK$2,919 HKD
$372 USD
View
A
Retailer 5
-
HK$3,501 HKD
€425 EUR
View
A
Retailer 6
-
HK$3,749 HKD
ZAR 7,719 ZAR
View
B+
Retailer 7
-
HK$4,045 HKD
£406 GBP
View
B+
Retailer 8
-
HK$4,072 HKD
$519 USD
View
B+
Retailer 9
-
HK$4,088 HKD
$521 USD
View
B+
Retailer 10
-
HK$5,299 HKD
A$1,039 AUD
View
B
Retailer 11
-
HK$5,657 HKD
$721 USD
View
Retailer 12
-
HK$5,806 HKD
$740 USD
View
Price last confirmed 18 days ago
B+
Retailer 13
-
HK$6,339 HKD
A$1,243 AUD
View
B
Retailer 14
-
HK$7,025 HKD
SGD 1,210 SGD
View
B
Retailer 15
-
HK$7,393 HKD
$942 USD
View
B
Retailer 16
-
HK$7,485 HKD
$954 USD
View
B
Retailer 17
-
HK$7,768 HKD
$990 USD
View
B
Retailer 18
-
HK$8,709 HKD
£874 GBP
View
Most Expensive
B
Reve Diamonds
F25E505C1 · Nov 1
HK$9,946 HKD
$1,268 USD
View
18 more retailers have this diamond
Prices start from HK$1,954 HKDSave up to HK$7,992 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$1,954 HKD