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Round|Natural|GIA

1.29ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1557909699

Certificate GIA 1557909699

Diamond specifications and retailer prices

From HK$29,174 HKD
$3,718 USD
As of October 31, 2026
Save HK$23,096 HKD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$52,422 HKD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 1557909699. Listed at 14 retailers as of October 31, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1557909699
Dimensions6.99 × 7.04 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.99 mm7.04 mm1.29 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1557909699
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.8°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: Oct 31
Current: HK$33,770 HKD|Low: HK$29,174 HKD|High: HK$54,985 HKD|Avg: HK$38,352 HKD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 2, 2026
Retailer 11HK$29,174 HKD
Retailer 10HK$29,399 HKD
Retailer 8HK$30,898 HKD
Retailer 4HK$31,841 HKD
Retailer 12HK$31,951 HKD
Retailer 1HK$33,770 HKD
Retailer 13HK$36,932 HKD
Retailer 2HK$37,189 HKD
Retailer 7HK$37,559 HKD
Retailer 9HK$38,812 HKD
Retailer 6HK$40,478 HKD
Retailer 5HK$49,195 HKD
Retailer 3HK$52,271 HKD
Wholesale Diamonds DirectHK$52,422 HKD

28 data points across 14 retailers

14 retailersHK$29,174 HKD to HK$52,271 HKD

A
Cheapest Retailer
-
HK$29,174 HKD
$3,718 USD
A
Retailer 2
-
HK$29,399 HKD
$3,747 USD
View
A
Retailer 3
-
HK$30,898 HKD
$3,938 USD
View
A
Retailer 4
-
HK$31,841 HKD
SGD 5,484 SGD
View
A
Retailer 5
-
HK$31,951 HKD
SGD 5,503 SGD
View
A
Retailer 6
-
HK$33,770 HKD
£3,389 GBP
View
B+
Retailer 7
-
HK$36,932 HKD
$4,707 USD
View
B+
Retailer 8
-
HK$37,189 HKD
$4,740 USD
View
B+
Retailer 9
-
HK$37,559 HKD
€4,559 EUR
View
B+
Retailer 10
-
HK$38,812 HKD
£3,895 GBP
View
B+
Retailer 11
-
HK$40,478 HKD
$5,159 USD
View
B+
Retailer 12
-
HK$49,195 HKD
$6,270 USD
View
B
Retailer 13
-
HK$52,271 HKD
$6,662 USD
View
Most Expensive
Wholesale Diamonds Direct
273030978 · Oct 26
HK$52,422 HKD
$6,681 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from HK$29,174 HKDSave up to HK$23,096 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$29,174 HKD