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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 HK$1,389 HKD
As of November 5, 2026
Save HK$6,642 HKD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$8,031 HKD 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 HK$1,389 to HK$8,031, a HK$6,642 spread on the same certified stone. MOH London lists it at HK$8,031. 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: HK$8,031 HKD|Low: HK$1,334 HKD|High: HK$10,787 HKD|Avg: HK$4,747 HKD|-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 11HK$1,389 HKD
Retailer 15HK$1,553 HKD
Retailer 16HK$1,608 HKD
Retailer 17HK$2,707 HKD
Retailer 2HK$2,840 HKD
Retailer 13HK$3,044 HKD
Retailer 7HK$3,781 HKD
Retailer 5HK$4,283 HKD
Retailer 8HK$4,393 HKD
Retailer 6HK$4,589 HKD
Retailer 14HK$5,523 HKD
Retailer 9HK$5,562 HKD
Retailer 10HK$5,837 HKD
Retailer 12HK$7,531 HKD
Retailer 3HK$7,884 HKD
MOH LondonHK$8,031 HKD
Retailer 4HK$10,787 HKD

21 data points across 17 retailers

11 retailersHK$1,389 HKD to HK$8,031 HKD

A
Cheapest Retailer
-
HK$1,389 HKD
A
Retailer 2
-
HK$1,553 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,608 HKD
View
A
Retailer 4
-
HK$2,707 HKD
View
A
Retailer 5
-
HK$2,840 HKD
View
A
Retailer 6
-
HK$3,044 HKD
View
B
Retailer 7
-
HK$5,523 HKD
View
B
Retailer 8
-
HK$5,837 HKD
View
B
Retailer 9
-
HK$7,531 HKD
View
B
Retailer 10
-
HK$7,884 HKD
View
Most Expensive
B
MOH London
LG529269207 · Nov 2
HK$8,031 HKD
£806 GBP
View
10 more retailers have this diamond
Prices start from HK$1,389 HKDSave up to HK$6,642 HKD

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
HK$1,389 HKD