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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 $200 AUD
As of November 4, 2026
Save $406 AUD (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,206 AUD 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 November 4, 2026, with a 204% 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 4
Current: $1,206 AUD|Low: $225 AUD|High: $1,238 AUD|Avg: $497 AUD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 6$292 AUD
Retailer 3$301 AUD
Retailer 4$306 AUD
Retailer 7$341 AUD
Retailer 5$445 AUD
Retailer 8$495 AUD
Retailer 2$606 AUD
MOH London$1,206 AUD

37 data points across 8 retailers

9 retailers$200 AUD to $606 AUD

B+
Cheapest Retailer
-
$200 AUD
Retailer 2
-
$292 AUD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$301 AUD
View
B+
Retailer 4
-
$306 AUD
View
B
Retailer 5
-
$341 AUD
View
B
Retailer 6
-
$445 AUD
View
Retailer 7
-
$495 AUD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$606 AUD
View
Most Expensive
MOH London
LG803661987 · Oct 26
$1,206 AUD
£666 GBP
View
Price last confirmed 8 days ago
8 more retailers have this diamond
Prices start from $200 AUDSave up to $406 AUD

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
$200 AUD