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Cushion|Lab Grown|IGI

1.28ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG843667683

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843667683

Diamond specifications and retailer prices

From HK$3,251 HKD
£326 GBP
As of November 1, 2026
Save HK$17,227 HKD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$20,477 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843667683 or 843667683. Listed at 11 retailers as of October 31, 2026, with prices from HK$3,251 to HK$20,477, a HK$17,227 spread on the same certified stone. Do Amore Diamonds lists it at HK$20,477. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843667683
Dimensions8.53 × 5.37 × 3.53 mm
L/W Ratio1.59
Girdle conditionFaceted
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
8.53 mm5.37 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843667683
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 31.6°Culet: NoneDepth 65.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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$20,477 HKD|Low: HK$2,854 HKD|High: HK$25,028 HKD|Avg: HK$10,305 HKD|-18.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4HK$3,251 HKD
Retailer 10HK$4,080 HKD
Retailer 11HK$4,684 HKD
Retailer 5HK$5,223 HKD
Retailer 3HK$5,390 HKD
Retailer 8HK$7,670 HKD
Retailer 9HK$12,043 HKD
Retailer 2HK$12,654 HKD
Retailer 6HK$13,968 HKD
Retailer 7HK$14,750 HKD
Do Amore DiamondsHK$20,477 HKD

18 data points across 11 retailers

11 retailersHK$3,251 HKD to HK$20,477 HKD

A
Cheapest Retailer
-
HK$3,251 HKD
£326 GBP
A
Retailer 2
-
HK$4,080 HKD
$520 USD
View
A
Retailer 3
-
HK$4,684 HKD
$597 USD
View
A
Retailer 4
-
HK$5,223 HKD
€634 EUR
View
A
Retailer 5
-
HK$5,390 HKD
$687 USD
View
A
Retailer 6
-
HK$7,670 HKD
A$1,504 AUD
View
B+
Retailer 7
-
HK$12,043 HKD
$1,535 USD
View
B+
Retailer 8
-
HK$12,654 HKD
£1,270 GBP
View
B
Retailer 9
-
HK$13,968 HKD
A$2,739 AUD
View
B+
Retailer 10
-
HK$14,750 HKD
$1,880 USD
View
Most Expensive
B
Do Amore Diamonds
27-5C60E91B3 · Oct 31
HK$20,477 HKD
$2,610 USD
View
10 more retailers have this diamond
Prices start from HK$3,251 HKDSave up to HK$17,227 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$3,251 HKD