Marquise|Natural|GIA

0.80ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6565518043

Certificate GIA 6565518043

Diamond specifications and retailer prices

From $906 USD
As of October 31, 2026
Save $720 USD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,626 USD 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 $906 to $1,626, a $720 spread on the same certified stone. Helzberg Diamonds lists it at $1,626. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,626 USD|Low: $906 USD|High: $1,691 USD|Avg: $1,201 USD|-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 1, 2026
Retailer 5$906 USD
Retailer 8$910 USD
Retailer 2$960 USD
Retailer 11$973 USD
Retailer 9$988 USD
Retailer 4$1,056 USD
Retailer 6$1,127 USD
Retailer 7$1,313 USD
Retailer 10$1,395 USD
Retailer 3$1,531 USD
Helzberg Diamonds$1,626 USD

26 data points across 11 retailers

12 retailers$906 USD to $1,626 USD

A
Cheapest Retailer
-
$906 USD
A
Retailer 2
-
$910 USD
View
A
Retailer 3
-
$960 USD
View
A
Retailer 4
-
$966 USD
SGD 1,306 SGD
View
A
Retailer 5
-
$973 USD
View
A
Retailer 6
-
$988 USD
SGD 1,335 SGD
View
A
Retailer 7
-
$1,056 USD
£831 GBP
View
B+
Retailer 8
-
$1,127 USD
View
B+
Retailer 9
-
$1,313 USD
€1,250 EUR
View
B+
Retailer 10
-
$1,395 USD
View
B
Retailer 11
-
$1,531 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMLLHOGKJ · Nov 1
$1,626 USD
View
11 more retailers have this diamond
Prices start from $906 USDSave up to $720 USD

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
$906 USD