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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 $5,306 AUD
$3,718 USD
As of October 31, 2026
Save $4,013 AUD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,534 AUD 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 76% 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: $9,319 AUD|Low: $5,306 AUD|High: $9,910 AUD|Avg: $6,901 AUD|-5.9%
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 13$5,306 AUD
Retailer 12$5,347 AUD
Retailer 10$5,619 AUD
Retailer 6$5,674 AUD
Retailer 2$5,811 AUD
Retailer 8$6,019 AUD
Retailer 3$6,716 AUD
Retailer 4$6,763 AUD
Retailer 7$6,838 AUD
Retailer 11$7,058 AUD
Retailer 9$7,361 AUD
Retailer 5$8,947 AUD
Retailer 1$9,319 AUD
Wholesale Diamonds Direct$9,534 AUD

29 data points across 14 retailers

14 retailers$5,306 AUD to $9,319 AUD

A
Cheapest Retailer
-
$5,306 AUD
$3,718 USD
A
Retailer 2
-
$5,347 AUD
$3,747 USD
View
A
Retailer 3
-
$5,619 AUD
$3,938 USD
View
A
Retailer 4
-
$5,674 AUD
SGD 5,374 SGD
View
A
Retailer 5
-
$5,811 AUD
SGD 5,503 SGD
View
A
Retailer 6
-
$6,019 AUD
£3,322 GBP
View
B+
Retailer 7
-
$6,716 AUD
$4,707 USD
View
B+
Retailer 8
-
$6,763 AUD
$4,740 USD
View
B+
Retailer 9
-
$6,838 AUD
€4,564 EUR
View
B+
Retailer 10
-
$7,058 AUD
£3,895 GBP
View
B+
Retailer 11
-
$7,361 AUD
$5,159 USD
View
B+
Retailer 12
-
$8,947 AUD
$6,270 USD
View
B
Retailer 13
-
$9,319 AUD
$6,531 USD
View
Most Expensive
Wholesale Diamonds Direct
273030978 · Oct 26
$9,534 AUD
$6,681 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $5,306 AUDSave up to $4,013 AUD

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
$5,306 AUD