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Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG766657558

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

Certificate IGI LG766657558

Diamond specifications and retailer prices

From HK$3,154 HKD
As of October 29, 2026
Save HK$6,104 HKD (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,258 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG766657558 or 766657558. Listed at 16 retailers as of October 29, 2026, with prices from HK$3,154 to HK$9,258, a HK$6,104 spread on the same certified stone. Brilliant Earth lists it at HK$9,258. 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

1.51
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766657558
Dimensions6.70 × 6.38 × 3.91 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.70 mm6.38 mm1.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766657558
Side View
Table 68.0%Crown 37.8°Girdle: THK-VTKPavilion 32.6°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: HK$9,258 HKD|Low: HK$1,891 HKD|High: HK$10,121 HKD|Avg: HK$5,151 HKD|-8.5%
Brilliant Earth
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
October 29, 2026
Retailer 7HK$1,891 HKD
Retailer 11HK$2,526 HKD
Retailer 8HK$3,154 HKD
Retailer 12HK$3,209 HKD
Retailer 2HK$3,389 HKD
Retailer 14HK$3,695 HKD
Retailer 10HK$3,892 HKD
Retailer 4HK$4,409 HKD
Retailer 6HK$4,864 HKD
Retailer 3HK$6,426 HKD
Retailer 5HK$7,061 HKD
Retailer 13HK$7,289 HKD
Retailer 15HK$7,767 HKD
Retailer 9HK$8,787 HKD
Brilliant EarthHK$9,258 HKD

38 data points across 15 retailers

16 retailersHK$3,154 HKD to HK$9,258 HKD

Retailer 1
-
HK$1,891 HKD
Price last confirmed 11 days ago
Retailer 2
-
HK$2,526 HKD
View
Price last confirmed 8 days ago
A
Retailer 3
-
HK$3,154 HKD
View
Retailer 4
-
HK$3,209 HKD
View
Price last confirmed 9 days ago
A
Retailer 5
-
HK$3,389 HKD
View
A
Retailer 6
-
HK$3,695 HKD
View
Retailer 7
-
HK$3,892 HKD
View
Price last confirmed 7 days ago
Retailer 8
-
HK$4,409 HKD
View
Price last confirmed 10 days ago
Retailer 9
-
HK$4,864 HKD
View
Price last confirmed 10 days ago
B
Retailer 10
-
HK$6,426 HKD
View
Retailer 11
-
HK$7,061 HKD
View
Price last confirmed 17 days ago
Retailer 12
-
HK$7,289 HKD
View
Price last confirmed 7 days ago
Retailer 13
-
HK$7,508 HKD
View
Price last confirmed 9 days ago
Retailer 14
-
HK$7,767 HKD
View
Price last confirmed 9 days ago
Retailer 15
-
HK$8,787 HKD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
18645848A · Oct 29
HK$9,258 HKD
$1,180 USD
View
15 more retailers have this diamond
Prices start from HK$3,154 HKDSave up to HK$6,104 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
1.51ct Cushion
HK$3,154 HKD