Radiant|Lab Grown|IGI

0.51ct D VS2 Radiant Lab Grown Diamond

VG • D/VS2 • IGI LG591390967

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

Certificate IGI LG591390967

Diamond specifications and retailer prices

From $120 USD
As of October 30, 2026
Save $817 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,246 USD at MOH London · As of October 29, 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 very-good cut grade and certified by IGI LG591390967 or 591390967. Listed at 21 retailers as of October 30, 2026, with a 681% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Color
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591390967
Dimensions5.68 × 3.85 × 2.71 mm
L/W Ratio1.48
Culet sizePointed
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
5.68 mm3.85 mm0.51 ctD / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591390967
Side View
Table 63.0%Crown 39.4°Girdle: ThickPavilion 34.2°Culet: NoneDepth 70.4%

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 30
Current: $1,246 USD|Low: $115 USD|High: $1,253 USD|Avg: $370 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
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 12$120 USD
Retailer 6$133 USD
Retailer 3$139 USD
Retailer 4$158 USD
Retailer 14$158 USD
Retailer 13$210 USD
Retailer 10$250 USD
Retailer 9$278 USD
Retailer 2$305 USD
Retailer 8$358 USD
Retailer 5$377 USD
Retailer 15$477 USD
Retailer 11$532 USD
Retailer 7$777 USD
MOH London$1,246 USD

43 data points across 15 retailers

21 retailers$120 USD to $937 USD

A
Cheapest Retailer
-
$120 USD
A
Retailer 2
-
$133 USD
View
Final sale: no returns
A
Retailer 3
-
$139 USD
View
A
Retailer 4
-
$158 USD
View
A
Retailer 5
-
$158 USD
View
A
Retailer 6
-
$179 USD
HK$1,400 HKD
View
A
Retailer 7
-
$210 USD
View
Retailer 8
-
$250 USD
View
Price last confirmed 12 days ago
Retailer 9
-
$278 USD
€265 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$305 USD
£240 GBP
View
B
Retailer 11
-
$358 USD
£282 GBP
View
B+
Retailer 12
-
$377 USD
View
B
Retailer 13
-
$417 USD
SGD 563 SGD
View
B
Retailer 14
-
$465 USD
£366 GBP
View
B
Retailer 15
-
$477 USD
View
B
Retailer 16
-
$532 USD
View
B
Retailer 17
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$534 USD
View
B
Retailer 18
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$676 USD
£532 GBP
View
B
Retailer 19
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$777 USD
£612 GBP
View
B
Retailer 20
-
$937 USD
View
Most Expensive
MOH London
LG591390967 · Oct 29
$1,246 USD
£981 GBP
View
Price under review
20 more retailers have this diamond
Prices start from $120 USDSave up to $817 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 Radiant
$120 USD