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0.51ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG502108778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG502108778

Diamond specifications and retailer prices

From $320 USD
As of October 30, 2026
Save $1,459 USD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,779 USD 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG502108778 or 502108778. Listed at 13 retailers as of October 26, 2026, with prices from $320 to $1,779, a $1,459 spread on the same certified stone. MOH London lists it at $1,779. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502108778
Dimensions5.22 × 5.18 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.22 mm5.18 mm0.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG502108778
Side View
Table 58.0%Crown 33.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.3%

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 30
Current: $1,779 USD|Low: $293 USD|High: $1,798 USD|Avg: $776 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 31, 2026
Retailer 10$320 USD
Retailer 14$367 USD
Retailer 3$411 USD
Retailer 5$425 USD
Retailer 15$455 USD
Retailer 17$455 USD
Retailer 8$462 USD
Retailer 6$605 USD
Retailer 16$726 USD
Retailer 2$816 USD
Retailer 12$823 USD
Retailer 7$844 USD
Retailer 9$952 USD
Retailer 11$1,158 USD
Retailer 13$1,333 USD
Retailer 4$1,462 USD
MOH London$1,779 USD

29 data points across 17 retailers

13 retailers$320 USD to $1,779 USD

A
Cheapest Retailer
-
$320 USD
A
Retailer 2
-
$367 USD
View
A
Retailer 3
-
$411 USD
View
Final sale: no returns
A
Retailer 4
-
$425 USD
View
B+
Retailer 5
-
$455 USD
View
B+
Retailer 6
-
$455 USD
View
B+
Retailer 7
-
$726 USD
View
B+
Retailer 8
-
$816 USD
€777 EUR
View
B+
Retailer 9
-
$823 USD
ZAR 13,288 ZAR
View
B
Retailer 10
-
$1,158 USD
A$1,781 AUD
View
B
Retailer 11
-
$1,333 USD
View
B
Retailer 12
-
$1,462 USD
View
Most Expensive
B
MOH London
LG502108778 · Oct 26
$1,779 USD
£1,401 GBP
View
12 more retailers have this diamond
Prices start from $320 USDSave up to $1,459 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.

A
0.51ct Round
$320 USD