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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 $1,159 SGD
$906 USD
As of October 31, 2026
Save $920 SGD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,079 SGD 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 $1,159 to $2,079, a $920 spread on the same certified stone. Helzberg Diamonds lists it at $2,079. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,079 SGD|Low: $1,159 SGD|High: $2,163 SGD|Avg: $1,532 SGD|-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 3, 2026
Retailer 6$1,159 SGD
Retailer 8$1,164 SGD
Retailer 5$1,228 SGD
Retailer 11$1,244 SGD
Retailer 9$1,263 SGD
Retailer 2$1,350 SGD
Retailer 7$1,441 SGD
Retailer 4$1,684 SGD
Retailer 10$1,784 SGD
Retailer 3$1,958 SGD
Helzberg Diamonds$2,079 SGD

28 data points across 11 retailers

12 retailers$1,159 SGD to $2,079 SGD

A
Cheapest Retailer
-
$1,159 SGD
$906 USD
A
Retailer 2
-
$1,164 SGD
$910 USD
View
A
Retailer 3
-
$1,228 SGD
$960 USD
View
A
Retailer 4
-
$1,236 SGD
View
A
Retailer 5
-
$1,244 SGD
$973 USD
View
A
Retailer 6
-
$1,263 SGD
View
A
Retailer 7
-
$1,350 SGD
£831 GBP
View
B+
Retailer 8
-
$1,441 SGD
$1,127 USD
View
B+
Retailer 9
-
$1,684 SGD
€1,254 EUR
View
B+
Retailer 10
-
$1,784 SGD
$1,395 USD
View
Retailer 11
-
$1,958 SGD
$1,531 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Helzberg Diamonds
XZRMLMLLHOGKJ · Nov 1
$2,079 SGD
$1,626 USD
View
11 more retailers have this diamond
Prices start from $1,159 SGDSave up to $920 SGD

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
$1,159 SGD