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Marquise|Natural|GIA

0.80ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6565518043

Certificate GIA 6565518043

Diamond specifications and retailer prices

From $1,293 AUD
$906 USD
As of October 31, 2026
Save $1,027 AUD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,320 AUD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565518043. Listed at 12 retailers as of October 31, 2026, with prices from $1,293 to $2,320, a $1,027 spread on the same certified stone. Helzberg Diamonds lists it at $2,320. 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

0.80
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.46°
Pavilion angle39.52°
OriginNatural
Grading LabGIA
CertificateGIA 6565518043
Dimensions9.15 × 4.84 × 3.01 mm
L/W Ratio1.89
Culet sizeNone
Top View
9.15 mm4.84 mm0.80 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565518043
Side View
Table 57.0%Crown 38.46°Girdle: STK-VTKPavilion 39.52°Culet: NoneDepth 62.2%

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: Oct 31
Current: $2,320 AUD|Low: $1,293 AUD|High: $2,413 AUD|Avg: $1,711 AUD|-3.8%
Helzberg Diamonds
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$1,293 AUD
Retailer 8$1,298 AUD
Retailer 5$1,370 AUD
Retailer 11$1,388 AUD
Retailer 9$1,410 AUD
Retailer 4$1,494 AUD
Retailer 7$1,608 AUD
Retailer 2$1,879 AUD
Retailer 10$1,991 AUD
Retailer 3$2,185 AUD
Helzberg Diamonds$2,320 AUD

27 data points across 11 retailers

12 retailers$1,293 AUD to $2,320 AUD

A
Cheapest Retailer
-
$1,293 AUD
$906 USD
A
Retailer 2
-
$1,298 AUD
$910 USD
View
A
Retailer 3
-
$1,370 AUD
$960 USD
View
A
Retailer 4
-
$1,379 AUD
SGD 1,306 SGD
View
A
Retailer 5
-
$1,388 AUD
$973 USD
View
A
Retailer 6
-
$1,410 AUD
SGD 1,335 SGD
View
A
Retailer 7
-
$1,494 AUD
£824 GBP
View
B+
Retailer 8
-
$1,608 AUD
$1,127 USD
View
B+
Retailer 9
-
$1,879 AUD
€1,254 EUR
View
B+
Retailer 10
-
$1,991 AUD
$1,395 USD
View
B
Retailer 11
-
$2,185 AUD
$1,531 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMLLHOGKJ · Nov 1
$2,320 AUD
$1,626 USD
View
11 more retailers have this diamond
Prices start from $1,293 AUDSave up to $1,027 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
0.80ct Marquise
$1,293 AUD