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Marquise|Natural|GIA

0.59ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 1555909098

Certificate GIA 1555909098

Diamond specifications and retailer prices

From $1,363 AUD
$955 USD
As of November 1, 2026
Save $41 AUD (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,404 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.59ct natural marquise diamond

This 0.59ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555909098. Listed at 2 retailers as of November 1, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.59
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555909098
Dimensions7.97 × 4.32 × 2.86 mm
L/W Ratio1.84
Culet sizeNone
Key to symbols
Cloud, Feather, Twinning Wisp
Top View
7.97 mm4.32 mm0.59 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555909098
Side View
Table 56.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 66.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $1,404 AUD|Low: $1,272 AUD|High: $1,415 AUD|Avg: $1,323 AUD|+4.8%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$1,272 AUD
Retailer 2$1,363 AUD
77 Diamonds$1,404 AUD

31 data points across 3 retailers

2 retailers$1,363 AUD to $1,404 AUD

B+
Cheapest Retailer
-
$1,363 AUD
$955 USD
Most Expensive
B+
77 Diamonds
MQCPSSGHP4BB · Nov 2
$1,404 AUD
£775 GBP
View
1 more retailer has this diamond
Prices start from $1,363 AUDSave up to $41 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.

B+
0.59ct Marquise
$1,363 AUD