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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 $102 SGD
$80 USD
As of November 1, 2026
Save $835 SGD (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $937 SGD 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 $102 to $937, a $835 spread on the same certified stone. MOH London lists it at $937. 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
Colour
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: $937 SGD|Low: $102 SGD|High: $942 SGD|Avg: $318 SGD|-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$102 SGD
Retailer 5$119 SGD
Retailer 3$136 SGD
Retailer 7$136 SGD
Retailer 8$278 SGD
Retailer 4$411 SGD
Retailer 2$457 SGD
Retailer 6$523 SGD
MOH London$937 SGD

7 data points across 9 retailers

9 retailers$102 SGD to $937 SGD

A
Cheapest Retailer
-
$102 SGD
$80 USD
B+
Retailer 2
-
$119 SGD
$93 USD
View
B+
Retailer 3
-
$136 SGD
$106 USD
View
Retailer 4
-
$136 SGD
$106 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$278 SGD
$217 USD
View
B+
Retailer 6
-
$411 SGD
$321 USD
View
B+
Retailer 7
-
$457 SGD
$357 USD
View
B+
Retailer 8
-
$523 SGD
$409 USD
View
Most Expensive
B
MOH London
LG816670138 · Nov 1
$937 SGD
£577 GBP
View
8 more retailers have this diamond
Prices start from $102 SGDSave up to $835 SGD

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
$102 SGD