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Oval|Lab Grown|IGI

1.50ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG492136358

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG492136358

Diamond specifications and retailer prices

From $1,678 NZD
As of November 6, 2026
Save $6,879 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,557 NZD at MOH London · As of November 1, 2026
View at MOH London

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136358 or 492136358. Listed at 11 retailers as of November 1, 2026, with prices from $1,678 to $8,557, a $6,879 spread on the same certified stone. MOH London lists it at $8,557. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136358
Dimensions9.14 × 6.52 × 4.12 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.14 mm6.52 mm1.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136358
Side View
Table 54.5%Crown 32.9°Girdle: MED-STKPavilion 42.6°Culet: NoneDepth 63.2%

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 6
Current: $8,557 NZD|Low: $1,678 NZD|High: $8,660 NZD|Avg: $4,024 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$1,678 NZD
Retailer 6$2,583 NZD
Retailer 11$2,810 NZD
Retailer 8$2,996 NZD
Retailer 12$2,996 NZD
Retailer 3$3,301 NZD
Retailer 5$3,312 NZD
Retailer 4$4,077 NZD
Retailer 2$4,199 NZD
Retailer 9$4,724 NZD
Retailer 13$5,437 NZD
Retailer 10$5,616 NZD
MOH London$8,557 NZD

40 data points across 13 retailers

11 retailers$1,678 NZD to $8,557 NZD

A
Cheapest Retailer
-
$1,678 NZD
B+
Retailer 2
-
$2,583 NZD
View
B+
Retailer 3
-
$2,810 NZD
View
Retailer 4
-
$2,996 NZD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$2,996 NZD
View
B
Retailer 6
-
$3,301 NZD
View
B
Retailer 7
-
$4,199 NZD
View
B
Retailer 8
-
$4,724 NZD
View
B
Retailer 9
-
$5,437 NZD
View
B
Retailer 10
-
$5,616 NZD
View
Most Expensive
B
MOH London
LG492136358 · Nov 1
$8,557 NZD
£3,735 GBP
View
10 more retailers have this diamond
Prices start from $1,678 NZDSave up to $6,879 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
$1,678 NZD