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1.29ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG854634719

Shape and cutting style on the report: Round brilliant

Certificate IGI LG854634719

Diamond specifications and retailer prices

From HK$1,803 HKD
As of November 6, 2026
Save HK$3,521 HKD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$5,324 HKD at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG854634719 or 854634719. Listed at 7 retailers as of November 6, 2026, with prices from HK$1,803 to HK$5,324, a HK$3,521 spread on the same certified stone. Taylor and Hart lists it at HK$5,324. 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

1.29
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG854634719
Dimensions6.91 × 6.93 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.91 mm6.93 mm1.29 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG854634719
Side View
Table 58.0%Crown 36.1°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.8%

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 6
Current: HK$3,205 HKD|Low: HK$1,803 HKD|High: HK$5,324 HKD|Avg: HK$3,253 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 6, 2026
Retailer 2HK$1,803 HKD
Retailer 5HK$2,053 HKD
Retailer 6HK$2,633 HKD
Retailer 3HK$2,649 HKD
Retailer 1HK$3,205 HKD
Retailer 4HK$5,102 HKD
Taylor and HartHK$5,324 HKD

1 data point across 7 retailers

7 retailersHK$1,803 HKD to HK$5,324 HKD

A
Cheapest Retailer
-
HK$1,803 HKD
B+
Retailer 2
-
HK$2,053 HKD
View
A
Retailer 3
-
HK$2,633 HKD
View
A
Retailer 4
-
HK$2,649 HKD
View
A
Retailer 5
-
HK$3,205 HKD
View
B+
Retailer 6
-
HK$5,102 HKD
View
Most Expensive
B
Taylor and Hart
4387DGU · Nov 6
HK$5,324 HKD
$679 USD
View
6 more retailers have this diamond
Prices start from HK$1,803 HKDSave up to HK$3,521 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
1.29ct Round
HK$1,803 HKD