CaratHunter
Plans
Round|Lab Grown|IGI

1.23ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG12577117

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12577117

Diamond specifications and retailer prices

From HK$4,646 HKD
£466 GBP
As of November 3, 2026
1 retailer carries this diamond
Only listing: HK$4,646 HKD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG12577117 or 12577117. Listed at a single retailer as of November 3, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12577117
Dimensions6.86 × 6.91 × 4.20 mm
L/W Ratio1.01
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
6.86 mm6.91 mm1.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12577117
Side View
Table 59.0%Crown 34.5°Girdle: MED-UNDPavilion 40.8°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: HK$4,646 HKD|Low: HK$4,646 HKD|High: HK$127,525 HKD|Avg: HK$78,611 HKD|-20.4%
Diamond Quarter
Retailer 2
February 7, 2026
Diamond QuarterHK$4,646 HKD
Retailer 2HK$127,525 HKD

3 data points across 2 retailers

1 retailer

B
Diamond Quarter
1.23VS1HLG27B404N · Nov 3
HK$4,646 HKD
£466 GBP
View

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.

B
1.23ct Round
HK$4,646 HKD