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Cushion|Lab Grown|IGI

1.51ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG649405817

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

Certificate IGI LG649405817

Diamond specifications and retailer prices

From HK$2,762 HKD
$352 USD
As of November 1, 2026
Save HK$7,392 HKD (73%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$10,154 HKD at MOH London · As of November 1, 2026
View at MOH London

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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG649405817 or 649405817. Listed at 8 retailers as of November 1, 2026, with prices from HK$2,762 to HK$10,154, a HK$7,392 spread on the same certified stone. MOH London lists it at HK$10,154. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649405817
Dimensions6.56 × 6.53 × 4.47 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
6.56 mm6.53 mm1.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649405817
Side View
Table 60.0%Crown 37.7°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 68.5%

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$10,154 HKD|Low: HK$2,754 HKD|High: HK$10,283 HKD|Avg: HK$6,174 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2HK$2,762 HKD
Retailer 4HK$3,884 HKD
Retailer 5HK$4,268 HKD
Retailer 3HK$6,198 HKD
Retailer 7HK$6,437 HKD
Retailer 6HK$9,474 HKD
MOH LondonHK$10,154 HKD

15 data points across 7 retailers

8 retailersHK$2,762 HKD to HK$10,154 HKD

A
Cheapest Retailer
-
HK$2,762 HKD
$352 USD
A
Retailer 2
-
HK$3,884 HKD
$495 USD
View
A
Retailer 3
-
HK$4,268 HKD
$544 USD
View
B+
Retailer 4
-
HK$6,198 HKD
$790 USD
View
Retailer 5
-
HK$6,278 HKD
$800 USD
View
Price last confirmed 85 days ago
Retailer 6
-
HK$6,355 HKD
$810 USD
View
Price last confirmed 28 days ago
B
Retailer 7
-
HK$9,474 HKD
$1,207 USD
View
Most Expensive
B
MOH London
LG649405817 · Nov 1
HK$10,154 HKD
£1,019 GBP
View
7 more retailers have this diamond
Prices start from HK$2,762 HKDSave up to HK$7,392 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$2,762 HKD