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 $141 USD
As of October 25, 2026
Save $677 USD (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $818 USD 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 25, 2026, with prices from $141 to $818, a $677 spread on the same certified stone. MOH London lists it at $818. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $818 USD|Low: $141 USD|High: $818 USD|Avg: $378 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 6$141 USD
Retailer 3$204 USD
Retailer 4$247 USD
Retailer 2$326 USD
Retailer 5$535 USD
MOH London$818 USD

5 data points across 6 retailers

6 retailers$141 USD to $818 USD

B+
Cheapest Retailer
-
$141 USD
B+
Retailer 2
-
$204 USD
£161 GBP
View
B
Retailer 3
-
$247 USD
CA$343 CAD
View
B
Retailer 4
-
$326 USD
View
B
Retailer 5
-
$535 USD
View
Most Expensive
C
MOH London
LG841695643 · Oct 25
$818 USD
£644 GBP
View
5 more retailers have this diamond
Prices start from $141 USDSave up to $677 USD

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
$141 USD