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Round|Lab Grown|IGI

1.29ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG816613930

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613930

Diamond specifications and retailer prices

From $249 AUD
As of November 5, 2026
Save $1,190 AUD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,439 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816613930 or 816613930. Listed at 16 retailers as of November 5, 2026, with prices from $249 to $1,439, a $1,190 spread on the same certified stone. MOH London lists it at $1,439. 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

1.29
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613930
Dimensions7.00 × 6.95 × 4.27 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
7.00 mm6.95 mm1.29 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613930
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.1%

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: $1,439 AUD|Low: $249 AUD|High: $1,459 AUD|Avg: $678 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$249 AUD
Retailer 9$309 AUD
Retailer 2$529 AUD
Retailer 4$544 AUD
Retailer 10$549 AUD
Retailer 5$614 AUD
Retailer 3$683 AUD
Retailer 6$786 AUD
Retailer 8$843 AUD
MOH London$1,439 AUD

45 data points across 10 retailers

16 retailers$249 AUD to $1,439 AUD

A
Cheapest Retailer
-
$249 AUD
A
Retailer 2
-
$289 AUD
View
Retailer 3
-
$309 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$309 AUD
View
A
Retailer 5
-
$529 AUD
View
A
Retailer 6
-
$544 AUD
View
B+
Retailer 7
-
$549 AUD
View
A
Retailer 8
-
$614 AUD
View
B+
Retailer 9
-
$660 AUD
View
A
Retailer 10
-
$683 AUD
View
B+
Retailer 11
-
$786 AUD
View
B+
Retailer 12
-
$843 AUD
View
B+
Retailer 13
-
$957 AUD
View
B
Retailer 14
-
$991 AUD
View
B+
Retailer 15
-
$1,069 AUD
View
Most Expensive
B
MOH London
LG816613930 · Nov 5
$1,439 AUD
£793 GBP
View
15 more retailers have this diamond
Prices start from $249 AUDSave up to $1,190 AUD

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
1.29ct Round
$249 AUD