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1.29ct F SI1 Round Natural Diamond

ID • F/SI1 • GIA 246

Certificate GIA 246

Diamond specifications and retailer prices

From HK$34,707 HKD
$4,424 USD
As of October 28, 2026
Save HK$7,426 HKD (18%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$42,134 HKD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 1.29ct natural round diamond

This 1.29ct natural 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 GIA. Listed at 2 retailers as of October 28, 2026, with prices from HK$34,707 to HK$42,134, a HK$7,426 spread on the same certified stone. Blue Nile lists it at HK$42,134. 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
OriginNatural
Grading LabGIA
CertificateGIA 246
Dimensions6.90 × 6.95 × 4.35 mm
L/W Ratio1.01
Top View
6.90 mm6.95 mm1.29 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 246
Side View
Table 56.0%CrownGirdle: Medium to Slightly ThickPavilionCulet: NDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: HK$42,134 HKD|Low: HK$34,707 HKD|High: HK$45,052 HKD|Avg: HK$39,658 HKD|-6.5%
Blue Nile
Retailer 2
October 28, 2026
Retailer 2HK$34,707 HKD
Blue NileHK$42,134 HKD

7 data points across 2 retailers

2 retailersHK$34,707 HKD to HK$42,134 HKD

A
Cheapest Retailer
-
HK$34,707 HKD
$4,424 USD
Most Expensive
B
Blue Nile
29883349 · Oct 29
HK$42,134 HKD
$5,370 USD
View
1 more retailer has this diamond
Prices start from HK$34,707 HKDSave up to HK$7,426 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$34,707 HKD