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Cushion|Lab Grown|IGI

0.51ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG795616319

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

Certificate IGI LG795616319

Diamond specifications and retailer prices

From HK$2,158 HKD
$275 USD
As of November 1, 2026
Save HK$7,000 HKD (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$9,157 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG795616319 or 795616319. Listed at 8 retailers as of November 1, 2026, with prices from HK$2,158 to HK$9,157, a HK$7,000 spread on the same certified stone. MOH London lists it at HK$9,157. 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

0.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795616319
Dimensions4.59 × 4.51 × 2.78 mm
L/W Ratio1.02
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
4.59 mm4.51 mm0.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG795616319
Side View
Table 67.0%Crown 35.7°Girdle: MED-THKPavilion 34°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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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$9,157 HKD|Low: HK$1,169 HKD|High: HK$9,267 HKD|Avg: HK$2,912 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6HK$1,169 HKD
Retailer 8HK$1,569 HKD
Retailer 4HK$2,076 HKD
Retailer 7HK$2,158 HKD
Retailer 2HK$2,215 HKD
Retailer 5HK$2,597 HKD
Retailer 3HK$2,648 HKD
Retailer 9HK$2,895 HKD
MOH LondonHK$9,157 HKD

39 data points across 9 retailers

8 retailersHK$2,158 HKD to HK$9,157 HKD

Retailer 1
-
HK$1,169 HKD
$149 USD
Price last confirmed 8 days ago
Retailer 2
-
HK$1,569 HKD
$200 USD
View
Price last confirmed 35 days ago
B+
Retailer 3
-
HK$2,158 HKD
$275 USD
View
B+
Retailer 4
-
HK$2,215 HKD
£222 GBP
View
Retailer 5
-
HK$2,597 HKD
$331 USD
View
Price last confirmed 17 days ago
B
Retailer 6
-
HK$2,648 HKD
£266 GBP
View
B
Retailer 7
-
HK$2,895 HKD
$369 USD
View
Most Expensive
B
MOH London
LG795616319 · Nov 1
HK$9,157 HKD
£919 GBP
View
7 more retailers have this diamond
Prices start from HK$2,158 HKDSave up to HK$7,000 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.

B+
0.51ct Cushion
HK$2,158 HKD