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Round|Lab Grown|IGI

0.51ct F VVS1 Round Lab Grown Diamond

ID • F/VVS1 • IGI LG842617942

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842617942

Diamond specifications and retailer prices

From $120 USD
As of November 1, 2026
Save $417 USD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,247 USD at MOH London · As of November 1, 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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG842617942 or 842617942. Listed at 11 retailers as of October 31, 2026, with a 348% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
F
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842617942
Dimensions5.16 × 5.21 × 3.06 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.16 mm5.21 mm0.51 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842617942
Side View
Table 60.0%Crown 32.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.1%

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: Nov 1
Current: $1,247 USD|Low: $120 USD|High: $1,262 USD|Avg: $374 USD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$120 USD
Retailer 11$134 USD
Retailer 3$159 USD
Retailer 5$271 USD
Retailer 8$272 USD
Retailer 6$288 USD
Retailer 2$307 USD
Retailer 4$380 USD
Retailer 7$535 USD
Retailer 10$537 USD
MOH London$1,247 USD

26 data points across 11 retailers

11 retailers$120 USD to $537 USD

A
Cheapest Retailer
-
$120 USD
A
Retailer 2
-
$134 USD
View
Final sale: no returns
Retailer 3
-
$159 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$159 USD
View
B+
Retailer 5
-
$271 USD
ZAR 4,382 ZAR
View
B+
Retailer 6
-
$288 USD
View
B+
Retailer 7
-
$307 USD
£242 GBP
View
B+
Retailer 8
-
$380 USD
A$585 AUD
View
B
Retailer 9
-
$535 USD
View
B
Retailer 10
-
$537 USD
View
Most Expensive
MOH London
LG842617942 · Nov 1
$1,247 USD
£982 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $120 USDSave up to $417 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
$120 USD