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Round|Lab Grown|IGI

1.05ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686964

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686964

Diamond specifications and retailer prices

From $247 NZD
As of November 5, 2026
Save $1,183 NZD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,430 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818686964 or 818686964. Listed at 13 retailers as of November 4, 2026, with prices from $247 to $1,430, a $1,183 spread on the same certified stone. MOH London lists it at $1,430. 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

1.05
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686964
Dimensions6.53 × 6.58 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.53 mm6.58 mm1.05 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686964
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 60.6%

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: $1,430 NZD|Low: $247 NZD|High: $1,516 NZD|Avg: $737 NZD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$247 NZD
Retailer 8$286 NZD
Retailer 4$306 NZD
Retailer 5$512 NZD
Retailer 2$544 NZD
Retailer 10$567 NZD
Retailer 11$573 NZD
Retailer 6$729 NZD
Retailer 7$777 NZD
Retailer 3$986 NZD
Retailer 12$1,083 NZD
MOH London$1,430 NZD

45 data points across 12 retailers

13 retailers$247 NZD to $1,430 NZD

A
Cheapest Retailer
-
$247 NZD
A
Retailer 2
-
$286 NZD
View
A
Retailer 3
-
$306 NZD
View
Retailer 4
-
$320 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$512 NZD
View
A
Retailer 6
-
$544 NZD
View
A
Retailer 7
-
$567 NZD
View
A
Retailer 8
-
$573 NZD
View
B+
Retailer 9
-
$729 NZD
View
B+
Retailer 10
-
$777 NZD
View
B
Retailer 11
-
$986 NZD
View
B
Retailer 12
-
$1,083 NZD
View
Most Expensive
B
MOH London
LG818686964 · Nov 4
$1,430 NZD
£633 GBP
View
12 more retailers have this diamond
Prices start from $247 NZDSave up to $1,183 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
1.05ct Round
$247 NZD