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Round|Lab Grown|IGI

1.23ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG529269207

Shape and cutting style on the report: Round brilliant

Certificate IGI LG529269207

Diamond specifications and retailer prices

From $253 AUD
As of November 5, 2026
Save $1,209 AUD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,462 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529269207 or 529269207. Listed at 11 retailers as of November 2, 2026, with prices from $253 to $1,462, a $1,209 spread on the same certified stone. MOH London lists it at $1,462. 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

1.23
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529269207
Dimensions6.84 × 6.80 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.84 mm6.80 mm1.23 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529269207
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.2%

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: $1,462 AUD|Low: $243 AUD|High: $1,964 AUD|Avg: $864 AUD|-1.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 11$253 AUD
Retailer 15$283 AUD
Retailer 16$293 AUD
Retailer 17$493 AUD
Retailer 2$517 AUD
Retailer 13$554 AUD
Retailer 7$689 AUD
Retailer 5$780 AUD
Retailer 8$800 AUD
Retailer 6$836 AUD
Retailer 14$1,006 AUD
Retailer 9$1,013 AUD
Retailer 10$1,063 AUD
Retailer 12$1,371 AUD
Retailer 3$1,436 AUD
MOH London$1,462 AUD
Retailer 4$1,964 AUD

21 data points across 17 retailers

11 retailers$253 AUD to $1,462 AUD

A
Cheapest Retailer
-
$253 AUD
A
Retailer 2
-
$283 AUD
View
Final sale: no returns
A
Retailer 3
-
$293 AUD
View
A
Retailer 4
-
$493 AUD
View
A
Retailer 5
-
$517 AUD
View
A
Retailer 6
-
$554 AUD
View
B
Retailer 7
-
$1,006 AUD
View
B
Retailer 8
-
$1,063 AUD
View
B
Retailer 9
-
$1,371 AUD
View
B
Retailer 10
-
$1,436 AUD
View
Most Expensive
B
MOH London
LG529269207 · Nov 2
$1,462 AUD
£806 GBP
View
10 more retailers have this diamond
Prices start from $253 AUDSave up to $1,209 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
1.23ct Round
$253 AUD