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Marquise|Natural|GIA

0.59ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 6565672755

Certificate GIA 6565672755

Diamond specifications and retailer prices

From $637 AUD
As of November 6, 2026
Save $640 AUD (50%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,277 AUD at 77 Diamonds · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6565672755. Listed at 2 retailers as of November 5, 2026, with prices from $637 to $1,277, a $640 spread on the same certified stone. 77 Diamonds lists it at $1,277. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6565672755
Dimensions7.78 × 4.28 × 2.91 mm
L/W Ratio1.82
Top View
7.78 mm4.28 mm0.59 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6565672755
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,277 AUD|Low: $637 AUD|High: $1,290 AUD|Avg: $908 AUD|-0.2%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2$637 AUD
77 Diamonds$1,277 AUD

7 data points across 2 retailers

2 retailers$637 AUD to $1,277 AUD

B+
Cheapest Retailer
-
$637 AUD
Most Expensive
B
77 Diamonds
MQCPZQFV5CZQ · Nov 5
$1,277 AUD
£691 GBP
View
1 more retailer has this diamond
Prices start from $637 AUDSave up to $640 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
$637 AUD