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Oval|Lab Grown|IGI

0.51ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG849636899

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG849636899

Diamond specifications and retailer prices

From $166 NZD
As of November 6, 2026
Save $520 NZD (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $685 NZD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 LG849636899 or 849636899. Listed at 7 retailers as of November 5, 2026, with prices from $166 to $685, a $520 spread on the same certified stone. Brilliant Earth lists it at $685. 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
Crown angle30.4°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849636899
Dimensions6.75 × 4.68 × 2.50 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.75 mm4.68 mm0.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG849636899
Side View
Table 64.0%Crown 30.4°Girdle: MED-STKPavilion 37.3°Culet: NoneDepth 53.4%

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 6
Current: $446 NZD|Low: $166 NZD|High: $532 NZD|Avg: $336 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$166 NZD
Retailer 3$231 NZD
Retailer 6$327 NZD
Retailer 2$400 NZD
Retailer 1$446 NZD
Retailer 5$532 NZD

2 data points across 6 retailers

7 retailers$166 NZD to $685 NZD

A
Cheapest Retailer
-
$166 NZD
Final sale: no returns
B+
Retailer 2
-
$231 NZD
View
B+
Retailer 3
-
$327 NZD
View
B+
Retailer 4
-
$400 NZD
View
B+
Retailer 5
-
$446 NZD
View
B+
Retailer 6
-
$532 NZD
View
Most Expensive
B
Brilliant Earth
22517742A · Nov 5
$685 NZD
$380 USD
View
6 more retailers have this diamond
Prices start from $166 NZDSave up to $520 NZD

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 Oval
$166 NZD