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Oval|Lab Grown|IGI

0.51ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG400929381

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG400929381

Diamond specifications and retailer prices

From $450 SGD
As of November 5, 2026
Save $552 SGD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,176 SGD at MOH London · As of November 5, 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 LG400929381 or 400929381. 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
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG400929381
Dimensions6.09 × 4.47 × 2.91 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.09 mm4.47 mm0.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400929381
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.1%

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: $2,176 SGD|Low: $315 SGD|High: $2,209 SGD|Avg: $845 SGD|-0.3%
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$315 SGD
Retailer 6$450 SGD
Retailer 7$487 SGD
Retailer 10$504 SGD
Retailer 8$559 SGD
Retailer 11$559 SGD
Retailer 9$896 SGD
Retailer 4$995 SGD
Retailer 2$1,002 SGD
Retailer 5$1,638 SGD
MOH London$2,176 SGD

45 data points across 11 retailers

12 retailers$450 SGD to $1,002 SGD

B+
Cheapest Retailer
-
$450 SGD
B
Retailer 2
-
$487 SGD
View
B
Retailer 3
-
$504 SGD
View
Final sale: no returns
B
Retailer 4
-
$523 SGD
View
B
Retailer 5
-
$559 SGD
View
Retailer 6
-
$559 SGD
View
Price last confirmed 12 days ago
B
Retailer 7
-
$896 SGD
View
B
Retailer 8
-
$995 SGD
View
B
Retailer 9
-
$1,002 SGD
View
Retailer 10
-
$1,638 SGD
View
Price under review
Retailer 11
-
$1,796 SGD
View
Price under review
Most Expensive
MOH London
LG400929381 · Nov 5
$2,176 SGD
£1,337 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $450 SGDSave up to $552 SGD

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
$450 SGD