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1.03ct H SI2 Round Lab Grown Diamond

ID • H/SI2 • IGI LG492123228

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123228

Diamond specifications and retailer prices

From $964 NZD
As of November 5, 2026
Save $4,011 NZD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,975 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492123228 or 492123228. Listed at 10 retailers as of November 5, 2026, with prices from $964 to $4,975, a $4,011 spread on the same certified stone. MOH London lists it at $4,975. 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

1.03
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123228
Dimensions6.49 × 6.46 × 4.02 mm
L/W Ratio1.00
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
6.49 mm6.46 mm1.03 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123228
Side View
Table 57.5%Crown 34.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.1%

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 5
Current: $4,975 NZD|Low: $925 NZD|High: $5,047 NZD|Avg: $2,007 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4$964 NZD
Retailer 2$1,050 NZD
Retailer 9$1,179 NZD
Retailer 5$1,195 NZD
Retailer 7$1,195 NZD
Retailer 8$1,311 NZD
Retailer 6$1,845 NZD
Retailer 10$2,499 NZD
Retailer 3$3,083 NZD
MOH London$4,975 NZD

15 data points across 10 retailers

10 retailers$964 NZD to $4,975 NZD

A
Cheapest Retailer
-
$964 NZD
A
Retailer 2
-
$1,050 NZD
View
A
Retailer 3
-
$1,080 NZD
View
Retailer 4
-
$1,195 NZD
View
Price last confirmed 21 days ago
A
Retailer 5
-
$1,195 NZD
View
A
Retailer 6
-
$1,311 NZD
View
Final sale: no returns
B+
Retailer 7
-
$1,845 NZD
View
B
Retailer 8
-
$3,083 NZD
View
B
Retailer 9
-
$3,143 NZD
View
Most Expensive
B
MOH London
LG492123228 · Nov 5
$4,975 NZD
£2,202 GBP
View
9 more retailers have this diamond
Prices start from $964 NZDSave up to $4,011 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
1.03ct Round
$964 NZD