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Cushion|Lab Grown|IGI

0.51ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG838654643

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG838654643

Diamond specifications and retailer prices

From HK$2,024 HKD
$258 USD
As of October 28, 2026
Save HK$2,636 HKD (57%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$7,469 HKD at Reve Diamonds · As of October 2, 2026
View at Reve Diamonds

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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG838654643 or 838654643. Listed at 10 retailers as of October 28, 2026, with a 130% 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

0.51
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.4°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838654643
Dimensions5.13 × 4.12 × 2.96 mm
L/W Ratio1.25
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.13 mm4.12 mm0.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG838654643
Side View
Table 65.0%Crown 37.4°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 71.8%

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: Oct 28
Current: HK$3,946 HKD|Low: HK$1,090 HKD|High: HK$7,469 HKD|Avg: HK$3,259 HKD|+8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 19, 2026
Retailer 13HK$1,090 HKD
Retailer 8HK$2,024 HKD
Retailer 12HK$2,087 HKD
Retailer 2HK$2,109 HKD
Retailer 5HK$2,390 HKD
Retailer 7HK$2,394 HKD
Retailer 9HK$2,510 HKD
Retailer 11HK$3,012 HKD
Retailer 10HK$3,216 HKD
Retailer 3HK$3,687 HKD
Retailer 1HK$3,946 HKD
Retailer 4HK$4,332 HKD
Retailer 6HK$4,660 HKD
Reve DiamondsHK$7,469 HKD

12 data points across 14 retailers

10 retailersHK$2,024 HKD to HK$4,660 HKD

A
Cheapest Retailer
-
HK$2,024 HKD
$258 USD
A
Retailer 2
-
HK$2,087 HKD
$266 USD
View
Price last confirmed 26 days ago
B+
Retailer 3
-
HK$2,394 HKD
$305 USD
View
B+
Retailer 4
-
HK$2,510 HKD
$320 USD
View
Price last confirmed 24 days ago
B
Retailer 5
-
HK$3,012 HKD
£302 GBP
View
Price last confirmed 24 days ago
B+
Retailer 6
-
HK$3,216 HKD
$410 USD
View
Price last confirmed 24 days ago
B
Retailer 7
-
HK$3,946 HKD
CA$699 CAD
View
B
Retailer 8
-
HK$4,332 HKD
$552 USD
View
Price last confirmed 26 days ago
B
Retailer 9
-
HK$4,660 HKD
$594 USD
View
Most Expensive
B
Reve Diamonds
5B66F9093 · Oct 2
HK$7,469 HKD
$952 USD
View
Price last confirmed 27 days ago
9 more retailers have this diamond
Prices start from HK$2,024 HKDSave up to HK$2,636 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
0.51ct Cushion
HK$2,024 HKD