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Oval|Lab Grown|IGI

0.51ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG837660529

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG837660529

Diamond specifications and retailer prices

From €161 EUR
$180 USD
As of October 28, 2026
Save €857 EUR (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,019 EUR at MOH London · As of October 25, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG837660529 or 837660529. Listed at 8 retailers as of October 25, 2026, with prices from €161 to €1,019, a €857 spread on the same certified stone. MOH London lists it at €1,019. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837660529
Dimensions6.26 × 4.48 × 2.79 mm
L/W Ratio1.40
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
6.26 mm4.48 mm0.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837660529
Side View
Table 62.0%Crown 35.8°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
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: Oct 28
Current: €1,019 EUR|Low: €161 EUR|High: €1,059 EUR|Avg: €368 EUR|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8€161 EUR
Retailer 7€166 EUR
Retailer 2€218 EUR
Retailer 3€244 EUR
Retailer 5€294 EUR
Retailer 4€322 EUR
Retailer 6€443 EUR
MOH London€1,019 EUR

14 data points across 8 retailers

8 retailers€161 EUR to €1,019 EUR

A
Cheapest Retailer
-
€161 EUR
$180 USD
A
Retailer 2
-
€166 EUR
$185 USD
View
A
Retailer 3
-
€218 EUR
View
A
Retailer 4
-
€244 EUR
£214 GBP
View
B+
Retailer 5
-
€294 EUR
£259 GBP
View
B+
Retailer 6
-
€322 EUR
$360 USD
View
B
Retailer 7
-
€443 EUR
$495 USD
View
Most Expensive
B
MOH London
LG837660529 · Oct 25
€1,019 EUR
£896 GBP
View
7 more retailers have this diamond
Prices start from €161 EURSave up to €857 EUR

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
€161 EUR