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1.23ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • GCAL 291150189

Shape and cutting style on the report: Round brilliant

Certificate GCAL 291150189

Diamond specifications and retailer prices

From HK$3,185 HKD
As of November 4, 2026
Save HK$6,151 HKD (66%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$9,337 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GCAL 291150189. Listed at 4 retailers as of November 2, 2026, with prices from HK$3,185 to HK$9,337, a HK$6,151 spread on the same certified stone. MOH London lists it at HK$9,337. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 291150189
Dimensions6.90 × 6.88 × 4.21 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.90 mm6.88 mm1.23 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 291150189
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41°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 4
Current: HK$9,337 HKD|Low: HK$2,832 HKD|High: HK$9,446 HKD|Avg: HK$5,976 HKD|+5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2HK$3,185 HKD
Retailer 3HK$4,064 HKD
Retailer 4HK$7,768 HKD
MOH LondonHK$9,337 HKD

11 data points across 4 retailers

4 retailersHK$3,185 HKD to HK$9,337 HKD

A
Cheapest Retailer
-
HK$3,185 HKD
B+
Retailer 2
-
HK$4,064 HKD
View
B
Retailer 3
-
HK$7,768 HKD
View
Most Expensive
B
MOH London
291150189 · Nov 2
HK$9,337 HKD
£937 GBP
View
3 more retailers have this diamond
Prices start from HK$3,185 HKDSave up to HK$6,151 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$3,185 HKD