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1.23ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG685550014

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685550014

Diamond specifications and retailer prices

From HK$1,240 HKD
As of November 5, 2026
Save HK$5,934 HKD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$7,174 HKD at MOH London · As of November 4, 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 LG685550014 or 685550014. Listed at 18 retailers as of November 4, 2026, with prices from HK$1,240 to HK$7,174, a HK$5,934 spread on the same certified stone. MOH London lists it at HK$7,174. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685550014
Dimensions6.94 × 6.90 × 4.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.94 mm6.90 mm1.23 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685550014
Side View
Table 58.0%Crown 33.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.8%

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$7,174 HKD|Low: HK$1,192 HKD|High: HK$7,632 HKD|Avg: HK$3,190 HKD|-6.0%
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 14HK$1,240 HKD
Retailer 7HK$1,381 HKD
Retailer 6HK$1,436 HKD
Retailer 16HK$1,538 HKD
Retailer 17HK$1,538 HKD
Retailer 8HK$2,055 HKD
Retailer 2HK$2,644 HKD
Retailer 10HK$2,667 HKD
Retailer 5HK$3,013 HKD
Retailer 4HK$3,044 HKD
Retailer 13HK$3,758 HKD
Retailer 11HK$3,805 HKD
Retailer 12HK$4,017 HKD
Retailer 15HK$4,550 HKD
Retailer 9HK$4,942 HKD
Retailer 3HK$5,374 HKD
MOH LondonHK$7,174 HKD

44 data points across 17 retailers

18 retailersHK$1,240 HKD to HK$7,174 HKD

A
Cheapest Retailer
-
HK$1,240 HKD
A
Retailer 2
-
HK$1,381 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,436 HKD
View
A
Retailer 4
-
HK$1,538 HKD
View
Retailer 5
-
HK$1,538 HKD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
HK$2,055 HKD
View
A
Retailer 7
-
HK$2,644 HKD
View
A
Retailer 8
-
HK$2,667 HKD
View
A
Retailer 9
-
HK$3,013 HKD
View
B+
Retailer 10
-
HK$3,758 HKD
View
Retailer 11
-
HK$3,766 HKD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
HK$3,805 HKD
View
B+
Retailer 13
-
HK$4,017 HKD
View
B+
Retailer 14
-
HK$4,095 HKD
View
B+
Retailer 15
-
HK$4,550 HKD
View
B
Retailer 16
-
HK$4,942 HKD
View
B
Retailer 17
-
HK$5,374 HKD
View
Most Expensive
B
MOH London
LG685550014 · Nov 4
HK$7,174 HKD
£720 GBP
View
17 more retailers have this diamond
Prices start from HK$1,240 HKDSave up to HK$5,934 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$1,240 HKD