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Radiant|Lab Grown|IGI

0.51ct D VS2 Radiant Lab Grown Diamond

EX • D/VS2 • IGI LG817666163

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG817666163

Diamond specifications and retailer prices

From €177 EUR
$198 USD
As of November 1, 2026
Save €210 EUR (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,090 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817666163 or 817666163. Listed at 10 retailers as of October 30, 2026, with a 119% 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
D
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817666163
Dimensions5.56 × 4.05 × 2.77 mm
L/W Ratio1.37
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
5.56 mm4.05 mm0.51 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817666163
Side View
Table 68.0%Crown 40.1°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 68.4%

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: €1,090 EUR|Low: €139 EUR|High: €1,102 EUR|Avg: €345 EUR|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8€139 EUR
Retailer 10€177 EUR
Retailer 6€224 EUR
Retailer 3€230 EUR
Retailer 2€265 EUR
Retailer 9€269 EUR
Retailer 5€315 EUR
Retailer 4€322 EUR
Retailer 7€388 EUR
MOH London€1,090 EUR

44 data points across 10 retailers

10 retailers€177 EUR to €388 EUR

Retailer 1
-
€139 EUR
$155 USD
Price last confirmed 16 days ago
A
Retailer 2
-
€177 EUR
$198 USD
View
Retailer 3
-
€224 EUR
$250 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
€230 EUR
View
B+
Retailer 5
-
€265 EUR
£233 GBP
View
B+
Retailer 6
-
€269 EUR
A$462 AUD
View
B+
Retailer 7
-
€315 EUR
£277 GBP
View
B+
Retailer 8
-
€322 EUR
$360 USD
View
B
Retailer 9
-
€388 EUR
$433 USD
View
Most Expensive
MOH London
LG817666163 · Oct 26
€1,090 EUR
£959 GBP
View
Price under review
9 more retailers have this diamond
Prices start from €177 EURSave up to €210 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 Radiant
€177 EUR