CaratHunter
Plans
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 $226 SGD
As of November 5, 2026
Save $1,081 SGD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,307 SGD 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 $226 to $1,307, a $1,081 spread on the same certified stone. MOH London lists it at $1,307. 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: $1,307 SGD|Low: $217 SGD|High: $1,756 SGD|Avg: $773 SGD|-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$226 SGD
Retailer 15$253 SGD
Retailer 16$262 SGD
Retailer 17$441 SGD
Retailer 2$462 SGD
Retailer 13$496 SGD
Retailer 7$616 SGD
Retailer 5$697 SGD
Retailer 8$715 SGD
Retailer 6$747 SGD
Retailer 14$899 SGD
Retailer 9$906 SGD
Retailer 10$950 SGD
Retailer 12$1,226 SGD
Retailer 3$1,284 SGD
MOH London$1,307 SGD
Retailer 4$1,756 SGD

21 data points across 17 retailers

11 retailers$226 SGD to $1,307 SGD

A
Cheapest Retailer
-
$226 SGD
A
Retailer 2
-
$253 SGD
View
Final sale: no returns
A
Retailer 3
-
$262 SGD
View
A
Retailer 4
-
$441 SGD
View
A
Retailer 5
-
$462 SGD
View
A
Retailer 6
-
$496 SGD
View
B
Retailer 7
-
$899 SGD
View
B
Retailer 8
-
$950 SGD
View
B
Retailer 9
-
$1,226 SGD
View
B
Retailer 10
-
$1,284 SGD
View
Most Expensive
B
MOH London
LG529269207 · Nov 2
$1,307 SGD
£806 GBP
View
10 more retailers have this diamond
Prices start from $226 SGDSave up to $1,081 SGD

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
$226 SGD