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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 $4,755 SGD
$3,718 USD
As of October 31, 2026
Save $3,765 SGD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,545 SGD 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: $6,129 SGD|Low: $4,755 SGD|High: $8,882 SGD|Avg: $6,195 SGD|-4.5%
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 3, 2026
Retailer 11$4,755 SGD
Retailer 10$4,792 SGD
Retailer 8$5,036 SGD
Retailer 4$5,190 SGD
Retailer 12$5,208 SGD
Retailer 6$5,395 SGD
Retailer 13$6,020 SGD
Retailer 2$6,062 SGD
Retailer 1$6,129 SGD
Retailer 9$6,326 SGD
Retailer 7$6,598 SGD
Retailer 5$8,019 SGD
Retailer 3$8,520 SGD
Wholesale Diamonds Direct$8,545 SGD

29 data points across 14 retailers

14 retailers$4,755 SGD to $8,520 SGD

A
Cheapest Retailer
-
$4,755 SGD
$3,718 USD
A
Retailer 2
-
$4,792 SGD
$3,747 USD
View
A
Retailer 3
-
$5,036 SGD
$3,938 USD
View
A
Retailer 4
-
$5,190 SGD
View
A
Retailer 5
-
$5,208 SGD
View
A
Retailer 6
-
$5,395 SGD
£3,322 GBP
View
B+
Retailer 7
-
$6,020 SGD
$4,707 USD
View
B+
Retailer 8
-
$6,062 SGD
$4,740 USD
View
B+
Retailer 9
-
$6,129 SGD
€4,564 EUR
View
B+
Retailer 10
-
$6,326 SGD
£3,895 GBP
View
B+
Retailer 11
-
$6,598 SGD
$5,159 USD
View
B+
Retailer 12
-
$8,019 SGD
$6,270 USD
View
B
Retailer 13
-
$8,520 SGD
$6,662 USD
View
Most Expensive
Wholesale Diamonds Direct
273030978 · Oct 26
$8,545 SGD
$6,681 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $4,755 SGDSave up to $3,765 SGD

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
$4,755 SGD