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Marquise|Natural|GIA

0.59ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6551757647

Certificate GIA 6551757647

Diamond specifications and retailer prices

From $986 AUD
SGD 934 SGD
As of October 31, 2026
Save $615 AUD (38%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,601 AUD at Frank Darling · As of November 2, 2026
View at Frank Darling

About this 0.59ct natural marquise diamond

This 0.59ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551757647. Listed at 11 retailers as of October 31, 2026, with prices from $986 to $1,601, a $615 spread on the same certified stone. Frank Darling lists it at $1,601. 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

0.59
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551757647
Dimensions9.01 × 4.17 × 2.71 mm
L/W Ratio2.16
Culet sizeNone
Top View
9.01 mm4.17 mm0.59 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551757647
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.9%

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: $1,601 AUD|Low: $986 AUD|High: $1,641 AUD|Avg: $1,291 AUD|-2.4%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6$986 AUD
Retailer 11$1,002 AUD
Retailer 8$1,057 AUD
Retailer 3$1,089 AUD
Retailer 5$1,177 AUD
Retailer 9$1,303 AUD
Retailer 2$1,351 AUD
Retailer 10$1,401 AUD
Retailer 4$1,468 AUD
Retailer 7$1,500 AUD
Frank Darling$1,601 AUD

38 data points across 11 retailers

11 retailers$986 AUD to $1,601 AUD

A
Cheapest Retailer
-
$986 AUD
SGD 934 SGD
A
Retailer 2
-
$1,002 AUD
SGD 949 SGD
View
A
Retailer 3
-
$1,057 AUD
$741 USD
View
B+
Retailer 4
-
$1,177 AUD
£650 GBP
View
B+
Retailer 5
-
$1,303 AUD
$913 USD
View
B+
Retailer 6
-
$1,320 AUD
$925 USD
View
B+
Retailer 7
-
$1,351 AUD
€902 EUR
View
B
Retailer 8
-
$1,401 AUD
$982 USD
View
B
Retailer 9
-
$1,468 AUD
$1,029 USD
View
B+
Retailer 10
-
$1,500 AUD
$1,051 USD
View
Most Expensive
B
Frank Darling
2665110HK · Nov 2
$1,601 AUD
$1,122 USD
View
10 more retailers have this diamond
Prices start from $986 AUDSave up to $615 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
0.59ct Marquise
$986 AUD