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Round|Lab Grown|IGI

0.51ct F I1 Round Lab Grown Diamond

EX • F/I1 • IGI LG816670138

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816670138

Diamond specifications and retailer prices

From $112 CAD
$80 USD
As of November 1, 2026
Save $912 CAD (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,024 CAD 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 I1 clarity (included), with a top-tier cut grade and certified by IGI LG816670138 or 816670138. Listed at 9 retailers as of November 1, 2026, with prices from $112 to $1,024, a $912 spread on the same certified stone. MOH London lists it at $1,024. 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
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816670138
Dimensions5.07 × 5.13 × 3.09 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
5.07 mm5.13 mm0.51 ctF / I1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG816670138
Side View
Table 61.0%Crown 35.2°Girdle: Slightly ThickPavilion 40.2°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,024 CAD|Low: $112 CAD|High: $1,029 CAD|Avg: $348 CAD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9$112 CAD
Retailer 5$130 CAD
Retailer 3$148 CAD
Retailer 7$148 CAD
Retailer 8$303 CAD
Retailer 4$449 CAD
Retailer 2$499 CAD
Retailer 6$572 CAD
MOH London$1,024 CAD

7 data points across 9 retailers

9 retailers$112 CAD to $1,024 CAD

A
Cheapest Retailer
-
$112 CAD
$80 USD
B+
Retailer 2
-
$130 CAD
$93 USD
View
B+
Retailer 3
-
$148 CAD
$106 USD
View
Retailer 4
-
$148 CAD
$106 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$303 CAD
$217 USD
View
B+
Retailer 6
-
$449 CAD
$321 USD
View
B+
Retailer 7
-
$499 CAD
$357 USD
View
B+
Retailer 8
-
$572 CAD
$409 USD
View
Most Expensive
B
MOH London
LG816670138 · Nov 1
$1,024 CAD
£577 GBP
View
8 more retailers have this diamond
Prices start from $112 CADSave up to $912 CAD

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
$112 CAD