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Oval|Lab Grown|IGI

0.51ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG445037644

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037644

Diamond specifications and retailer prices

From $244 USD
As of October 29, 2026
Save $973 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,217 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037644 or 445037644. Listed at 10 retailers as of October 29, 2026, with prices from $244 to $1,217, a $973 spread on the same certified stone. MOH London lists it at $1,217. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037644
Dimensions6.45 × 4.45 × 2.75 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.45 mm4.45 mm0.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037644
Side View
Table 56.0%Crown 31.9°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 61.8%

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 29
Current: $1,217 USD|Low: $193 USD|High: $1,226 USD|Avg: $543 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 5$244 USD
Retailer 9$272 USD
Retailer 7$302 USD
Retailer 10$302 USD
Retailer 6$360 USD
Retailer 8$508 USD
Retailer 2$571 USD
Retailer 11$600 USD
Retailer 3$633 USD
Retailer 4$974 USD
MOH London$1,217 USD

18 data points across 11 retailers

10 retailers$244 USD to $1,217 USD

A
Cheapest Retailer
-
$244 USD
A
Retailer 2
-
$272 USD
View
Final sale: no returns
A
Retailer 3
-
$283 USD
View
B+
Retailer 4
-
$302 USD
View
B+
Retailer 5
-
$302 USD
View
B+
Retailer 6
-
$360 USD
View
B+
Retailer 7
-
$508 USD
View
B
Retailer 8
-
$971 USD
View
B
Retailer 9
-
$974 USD
View
Most Expensive
B
MOH London
LG445037644 · Oct 29
$1,217 USD
£958 GBP
View
9 more retailers have this diamond
Prices start from $244 USDSave up to $973 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 Oval
$244 USD