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Oval|Lab Grown|IGI

1.50ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG853643338

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG853643338

Diamond specifications and retailer prices

From $515 NZD
£228 GBP
As of November 2, 2026
Save $2,258 NZD (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,773 NZD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.5ct lab-grown oval diamond

This 1.5ct lab-grown oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG853643338 or 853643338. Listed at 7 retailers as of November 1, 2026, with prices from $515 to $2,773, a $2,258 spread on the same certified stone. Brilliant Earth lists it at $2,773. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG853643338
Dimensions9.47 × 6.30 × 3.75 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.47 mm6.30 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG853643338
Side View
Table 62.0%Crown 33.4°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 59.5%

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: Nov 2
Current: $2,773 NZD|Low: $515 NZD|High: $2,773 NZD|Avg: $1,287 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$515 NZD
Retailer 7$555 NZD
Retailer 5$727 NZD
Retailer 3$828 NZD
Retailer 2$1,367 NZD
Retailer 6$1,390 NZD
Brilliant Earth$2,773 NZD

2 data points across 7 retailers

7 retailers$515 NZD to $2,773 NZD

A
Cheapest Retailer
-
$515 NZD
£228 GBP
B+
Retailer 2
-
$555 NZD
$312 USD
View
A
Retailer 3
-
$727 NZD
£322 GBP
View
A
Retailer 4
-
$828 NZD
$466 USD
View
B+
Retailer 5
-
$1,367 NZD
$769 USD
View
B+
Retailer 6
-
$1,390 NZD
$782 USD
View
Most Expensive
B
Brilliant Earth
22431729A · Nov 1
$2,773 NZD
$1,560 USD
View
6 more retailers have this diamond
Prices start from $515 NZDSave up to $2,258 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
1.50ct Oval
$515 NZD