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Oval|Lab Grown|IGI

0.51ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG407915432

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG407915432

Diamond specifications and retailer prices

From $351 USD
As of November 5, 2026
Save $431 USD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,712 USD at MOH London · As of October 19, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407915432 or 407915432. Listed at 12 retailers as of November 5, 2026, with a 123% 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle32.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407915432
Dimensions6.14 × 4.67 × 2.82 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.14 mm4.67 mm0.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407915432
Side View
Table 58.5%Crown 32.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,712 USD|Low: $246 USD|High: $1,723 USD|Avg: $660 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
November 6, 2026
Retailer 3$246 USD
Retailer 6$351 USD
Retailer 7$380 USD
Retailer 10$393 USD
Retailer 8$436 USD
Retailer 11$436 USD
Retailer 9$699 USD
Retailer 4$776 USD
Retailer 2$782 USD
Retailer 5$1,278 USD
MOH London$1,712 USD

45 data points across 11 retailers

12 retailers$351 USD to $782 USD

B+
Cheapest Retailer
-
$351 USD
B+
Retailer 2
-
$380 USD
View
B
Retailer 3
-
$393 USD
View
Final sale: no returns
B
Retailer 4
-
$408 USD
View
B
Retailer 5
-
$436 USD
View
Retailer 6
-
$436 USD
View
Price last confirmed 12 days ago
B
Retailer 7
-
$699 USD
View
B
Retailer 8
-
$776 USD
View
B
Retailer 9
-
$782 USD
View
Retailer 10
-
$1,278 USD
View
Price under review
Retailer 11
-
$1,401 USD
View
Price under review
Most Expensive
MOH London
LG407915432 · Oct 19
$1,712 USD
£1,348 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $351 USDSave up to $431 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.

B+
0.51ct Oval
$351 USD