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Round|Lab Grown|IGI

0.51ct G VS1 Round Lab Grown Diamond

VG • G/VS1 • IGI LG841695643

Shape and cutting style on the report: Round brilliant

Certificate IGI LG841695643

Diamond specifications and retailer prices

From $363 NZD
£161 GBP
As of October 27, 2026
Save $216 NZD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,451 NZD at MOH London · As of October 25, 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 LG841695643 or 841695643. Listed at 6 retailers as of October 27, 2026, with a 59% 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
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841695643
Dimensions5.13 × 5.08 × 3.13 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
5.13 mm5.08 mm0.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841695643
Side View
Table 59.0%Crown 33.8°Girdle: STK-THKPavilion 40.8°CuletDepth 61.4%

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: Oct 27
Current: $1,451 NZD|Low: $250 NZD|High: $1,451 NZD|Avg: $671 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 6$250 NZD
Retailer 3$363 NZD
Retailer 4$438 NZD
Retailer 2$578 NZD
Retailer 5$949 NZD
MOH London$1,451 NZD

5 data points across 6 retailers

6 retailers$363 NZD to $578 NZD

Retailer 1
-
$250 NZD
$141 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$363 NZD
£161 GBP
View
B
Retailer 3
-
$438 NZD
CA$343 CAD
View
B
Retailer 4
-
$578 NZD
$326 USD
View
Retailer 5
-
$949 NZD
$535 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG841695643 · Oct 25
$1,451 NZD
£644 GBP
View
Price last confirmed 8 days ago
5 more retailers have this diamond
Prices start from $363 NZDSave up to $216 NZD

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
$363 NZD