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Marquise|Natural|GIA

1.29ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2554636157

Certificate GIA 2554636157

Diamond specifications and retailer prices

From $7,412 AUD
As of November 4, 2026
Save $6,372 AUD (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,691 AUD at NZ Jewellers · As of September 18, 2026
View at NZ Jewellers

About this 1.29ct natural marquise diamond

This 1.29ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554636157. Listed at 19 retailers as of November 4, 2026, with a 86% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.98°
Pavilion angle38.81°
OriginNatural
Grading LabGIA
CertificateGIA 2554636157
Dimensions10.60 × 5.60 × 3.43 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.60 mm5.60 mm1.29 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554636157
Side View
Table 57.0%Crown 39.98°Girdle: STK-THKPavilion 38.81°Culet: NoneDepth 61.2%

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 4
Current: $8,910 AUD|Low: $4,662 AUD|High: $14,145 AUD|Avg: $9,114 AUD|-1.4%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 7, 2026
Retailer 13$4,662 AUD
Retailer 10$6,760 AUD
Retailer 4$7,412 AUD
Retailer 11$7,801 AUD
Retailer 3$7,912 AUD
Retailer 5$8,387 AUD
Retailer 18$8,403 AUD
Retailer 2$8,500 AUD
Retailer 1$8,910 AUD
Retailer 12$8,933 AUD
Retailer 20$8,933 AUD
Retailer 14$9,226 AUD
Retailer 7$9,475 AUD
Retailer 9$9,475 AUD
Retailer 8$9,795 AUD
Retailer 15$9,926 AUD
Retailer 17$10,210 AUD
Retailer 6$10,345 AUD
Retailer 19$13,733 AUD
Retailer 16$13,784 AUD

30 data points across 20 retailers

19 retailers$7,412 AUD to $13,784 AUD

A
Cheapest Retailer
-
$7,412 AUD
A
Retailer 2
-
$7,912 AUD
View
B+
Retailer 3
-
$8,387 AUD
View
B+
Retailer 4
-
$8,403 AUD
View
Retailer 5
-
$8,500 AUD
View
Price last confirmed 50 days ago
B+
Retailer 6
-
$8,910 AUD
View
B+
Retailer 7
-
$8,933 AUD
View
B+
Retailer 8
-
$8,933 AUD
View
B+
Retailer 9
-
$9,226 AUD
View
B+
Retailer 10
-
$9,475 AUD
View
B+
Retailer 11
-
$9,475 AUD
View
B+
Retailer 12
-
$9,795 AUD
View
Retailer 13
-
$9,806 AUD
View
Price last confirmed 53 days ago
B+
Retailer 14
-
$9,926 AUD
View
B+
Retailer 15
-
$10,210 AUD
View
Retailer 16
-
$10,345 AUD
View
Price last confirmed 15 days ago
B
Retailer 17
-
$13,733 AUD
View
B
Retailer 18
-
$13,784 AUD
View
Most Expensive
NZ Jewellers
c115f354-6115-4f76-b1dc-76e0fe7364f0 · Sep 18
$15,691 AUD
$10,781 USD
View
Price last confirmed 50 days ago
18 more retailers have this diamond
Prices start from $7,412 AUDSave up to $6,372 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 Marquise
$7,412 AUD