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Cushion|Lab Grown|IGI

1.28ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG783670511

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

Certificate IGI LG783670511

Diamond specifications and retailer prices

From HK$2,056 HKD
$262 USD
As of November 1, 2026
Save HK$7,349 HKD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,405 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 top-tier cut grade and certified by IGI LG783670511 or 783670511. Listed at 16 retailers as of November 1, 2026, with prices from HK$2,056 to HK$9,405, a HK$7,349 spread on the same certified stone. Reve Diamonds lists it at HK$9,405. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783670511
Dimensions6.34 × 6.28 × 4.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.34 mm6.28 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783670511
Side View
Table 62.0%Crown 35.2°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 66.1%

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$3,599 HKD|Low: HK$1,703 HKD|High: HK$10,749 HKD|Avg: HK$4,864 HKD|+16.1%
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
Retailer 14
Retailer 15
Retailer 16
Reve Diamonds
November 2, 2026
Retailer 7HK$1,962 HKD
Retailer 11HK$2,056 HKD
Retailer 13HK$2,620 HKD
Retailer 14HK$3,254 HKD
Retailer 10HK$3,386 HKD
Retailer 2HK$3,397 HKD
Retailer 1HK$3,599 HKD
Retailer 15HK$4,009 HKD
Retailer 16HK$4,488 HKD
Retailer 8HK$4,786 HKD
Retailer 6HK$4,804 HKD
Retailer 5HK$5,688 HKD
Retailer 4HK$6,115 HKD
Retailer 9HK$6,591 HKD
Retailer 3HK$6,724 HKD
Retailer 12HK$9,167 HKD
Reve DiamondsHK$9,405 HKD

19 data points across 17 retailers

16 retailersHK$2,056 HKD to HK$9,405 HKD

Retailer 1
-
HK$1,962 HKD
$250 USD
Price last confirmed 8 days ago
A
Retailer 2
-
HK$2,056 HKD
$262 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,620 HKD
£263 GBP
View
A
Retailer 4
-
HK$3,254 HKD
€395 EUR
View
A
Retailer 5
-
HK$3,386 HKD
ZAR 6,971 ZAR
View
A
Retailer 6
-
HK$3,397 HKD
$433 USD
View
A
Retailer 7
-
HK$3,599 HKD
£361 GBP
View
A
Retailer 8
-
HK$4,009 HKD
$511 USD
View
B+
Retailer 9
-
HK$4,488 HKD
$572 USD
View
Retailer 10
-
HK$4,804 HKD
A$942 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
HK$5,688 HKD
$725 USD
View
B+
Retailer 12
-
HK$6,115 HKD
A$1,199 AUD
View
B+
Retailer 13
-
HK$6,591 HKD
$840 USD
View
B+
Retailer 14
-
HK$6,724 HKD
$857 USD
View
B
Retailer 15
-
HK$9,167 HKD
£920 GBP
View
Most Expensive
B
Reve Diamonds
7BA50A69E · Nov 1
HK$9,405 HKD
$1,199 USD
View
15 more retailers have this diamond
Prices start from HK$2,056 HKDSave up to HK$7,349 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$2,056 HKD