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Round|Lab Grown|IGI

0.51ct G VS1 Round Lab Grown Diamond

VG • G/VS1 • IGI LG803661987

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803661987

Diamond specifications and retailer prices

From HK$1,105 HKD
As of November 1, 2026
Save HK$2,259 HKD (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$6,636 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG803661987 or 803661987. Listed at 9 retailers as of October 27, 2026, with a 205% 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
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803661987
Dimensions5.04 × 5.09 × 3.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.04 mm5.09 mm0.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG803661987
Side View
Table 63.0%Crown 36.8°Girdle: Slightly ThickPavilion 41.3°CuletDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$6,636 HKD|Low: HK$1,240 HKD|High: HK$6,816 HKD|Avg: HK$2,710 HKD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5HK$1,608 HKD
Retailer 4HK$1,683 HKD
Retailer 2HK$1,689 HKD
Retailer 6HK$1,875 HKD
Retailer 3HK$2,448 HKD
Retailer 7HK$2,723 HKD
Retailer 8HK$3,364 HKD
MOH LondonHK$6,636 HKD

37 data points across 8 retailers

9 retailersHK$1,105 HKD to HK$3,364 HKD

B+
Cheapest Retailer
-
HK$1,105 HKD
Retailer 2
-
HK$1,608 HKD
$205 USD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
HK$1,683 HKD
£169 GBP
View
B+
Retailer 4
-
HK$1,689 HKD
€205 EUR
View
Retailer 5
-
HK$1,875 HKD
$239 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
HK$2,448 HKD
$312 USD
View
Retailer 7
-
HK$2,723 HKD
$347 USD
View
Price last confirmed 7 days ago
B
Retailer 8
-
HK$3,364 HKD
$429 USD
View
Most Expensive
MOH London
LG803661987 · Oct 26
HK$6,636 HKD
£666 GBP
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from HK$1,105 HKDSave up to HK$2,259 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 Round
HK$1,105 HKD