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Cushion|Lab Grown|IGI

1.29ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG660480092

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG660480092

Diamond specifications and retailer prices

From HK$1,732 HKD
As of November 6, 2026
Save HK$7,563 HKD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$10,816 HKD at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

About this 1.29ct lab-grown cushion diamond

This 1.29ct 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 LG660480092 or 660480092. Listed at 17 retailers as of November 6, 2026, with a 437% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.29
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660480092
Dimensions5.79 × 5.79 × 4.00 mm
L/W Ratio1.00
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
5.79 mm5.79 mm1.29 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660480092
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 69.1%

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 6
Current: HK$10,816 HKD|Low: HK$1,732 HKD|High: HK$10,816 HKD|Avg: HK$4,484 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 4HK$1,732 HKD
Retailer 3HK$1,920 HKD
Retailer 9HK$3,253 HKD
Retailer 7HK$3,480 HKD
Retailer 8HK$3,511 HKD
Retailer 2HK$4,412 HKD
Retailer 10HK$4,679 HKD
Retailer 11HK$4,789 HKD
Retailer 12HK$5,721 HKD
Retailer 5HK$7,093 HKD
Retailer 6HK$8,927 HKD
Brilliant EarthHK$10,816 HKD

44 data points across 12 retailers

17 retailersHK$1,732 HKD to HK$9,295 HKD

A
Cheapest Retailer
-
HK$1,732 HKD
Final sale: no returns
A
Retailer 2
-
HK$1,920 HKD
View
B+
Retailer 3
-
HK$2,586 HKD
View
A
Retailer 4
-
HK$3,253 HKD
View
A
Retailer 5
-
HK$3,480 HKD
View
A
Retailer 6
-
HK$3,511 HKD
View
B+
Retailer 7
-
HK$4,052 HKD
View
B+
Retailer 8
-
HK$4,412 HKD
View
B+
Retailer 9
-
HK$4,679 HKD
View
B+
Retailer 10
-
HK$4,789 HKD
View
Retailer 11
-
HK$5,721 HKD
View
Price last confirmed 33 days ago
Retailer 12
-
HK$5,792 HKD
View
Price last confirmed 90 days ago
B
Retailer 13
-
HK$6,591 HKD
View
B
Retailer 14
-
HK$7,093 HKD
View
B
Retailer 15
-
HK$8,927 HKD
View
B
Retailer 16
-
HK$9,295 HKD
View
Most Expensive
Brilliant Earth
21311943A · Oct 22
HK$10,816 HKD
$1,380 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from HK$1,732 HKDSave up to HK$7,563 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
1.29ct Cushion
HK$1,732 HKD