Radiant|Lab Grown|IGI

0.51ct E VVS1 Radiant Lab Grown Diamond

VG • E/VVS1 • IGI LG788635068

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

Certificate IGI LG788635068

Diamond specifications and retailer prices

From $128 USD
As of October 24, 2026
Save $588 USD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,153 USD at MOH London · As of October 21, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG788635068 or 788635068. Listed at 20 retailers as of October 24, 2026, with a 460% 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
E
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788635068
Dimensions5.49 × 3.89 × 2.70 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.49 mm3.89 mm0.51 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788635068
Side View
Table 68.0%Crown 44.3°Girdle: MediumPavilion 38.8°Culet: NoneDepth 69.4%

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 24
Current: $1,153 USD|Low: $110 USD|High: $1,181 USD|Avg: $349 USD|-2.4%
MOH London
Retailer 2
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Retailer 11
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Retailer 21
October 27, 2026
Retailer 6$110 USD
Retailer 19$123 USD
Retailer 3$128 USD
Retailer 10$146 USD
Retailer 20$146 USD
Retailer 12$188 USD
Retailer 9$244 USD
Retailer 7$272 USD
Retailer 15$273 USD
Retailer 16$348 USD
Retailer 11$350 USD
Retailer 14$358 USD
Retailer 17$374 USD
Retailer 13$383 USD
Retailer 21$403 USD
Retailer 18$440 USD
Retailer 5$441 USD
Retailer 8$491 USD
Retailer 2$496 USD
Retailer 4$716 USD
MOH London$1,153 USD

26 data points across 21 retailers

20 retailers$128 USD to $716 USD

Retailer 1
-
$110 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$128 USD
View
A
Retailer 3
-
$146 USD
View
A
Retailer 4
-
$146 USD
View
A
Retailer 5
-
$188 USD
View
Retailer 6
-
$244 USD
ZAR 3,935 ZAR
View
Price last confirmed 8 days ago
Retailer 7
-
$272 USD
€259 EUR
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$273 USD
£215 GBP
View
B+
Retailer 9
-
$348 USD
A$536 AUD
View
Retailer 10
-
$350 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$358 USD
A$550 AUD
View
B
Retailer 12
-
$374 USD
£294 GBP
View
B+
Retailer 13
-
$383 USD
SGD 517 SGD
View
B+
Retailer 14
-
$403 USD
View
B+
Retailer 15
-
$440 USD
View
B+
Retailer 16
-
$441 USD
View
B
Retailer 17
-
$491 USD
View
B
Retailer 18
-
$496 USD
View
B
Retailer 19
-
$716 USD
£564 GBP
View
Most Expensive
MOH London
LG788635068 · Oct 21
$1,153 USD
£908 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $128 USDSave up to $588 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
$128 USD