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Marquise|Natural|GIA

0.80ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 5242028344

Certificate GIA 5242028344

Diamond specifications and retailer prices

From $1,886 AUD
SGD 1,786 SGD
As of October 31, 2026
Save $1,514 AUD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,400 AUD at Helzberg Diamonds · As of November 2, 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 H 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 5242028344. Listed at 12 retailers as of October 31, 2026, with prices from $1,886 to $3,400, a $1,514 spread on the same certified stone. Helzberg Diamonds lists it at $3,400. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.84°
Pavilion angle40.57°
OriginNatural
Grading LabGIA
CertificateGIA 5242028344
Dimensions9.24 × 4.79 × 3.02 mm
L/W Ratio1.93
Culet sizeNone
Top View
9.24 mm4.79 mm0.80 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242028344
Side View
Table 59.0%Crown 38.84°Girdle: MED-VTKPavilion 40.57°Culet: NoneDepth 63.0%

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: $3,400 AUD|Low: $1,886 AUD|High: $3,503 AUD|Avg: $2,365 AUD|-2.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$1,886 AUD
Retailer 9$1,897 AUD
Retailer 7$1,919 AUD
Retailer 11$1,929 AUD
Retailer 3$2,065 AUD
Retailer 5$2,103 AUD
Retailer 10$2,306 AUD
Retailer 6$2,380 AUD
Retailer 4$2,620 AUD
Retailer 2$2,728 AUD
Retailer 12$3,054 AUD
Helzberg Diamonds$3,400 AUD

31 data points across 12 retailers

12 retailers$1,886 AUD to $3,400 AUD

A
Cheapest Retailer
-
$1,886 AUD
SGD 1,786 SGD
A
Retailer 2
-
$1,897 AUD
$1,329 USD
View
A
Retailer 3
-
$1,919 AUD
$1,345 USD
View
A
Retailer 4
-
$1,929 AUD
$1,352 USD
View
A
Retailer 5
-
$2,065 AUD
SGD 1,956 SGD
View
A
Retailer 6
-
$2,103 AUD
£1,160 GBP
View
B+
Retailer 7
-
$2,306 AUD
$1,616 USD
View
B+
Retailer 8
-
$2,380 AUD
$1,668 USD
View
B+
Retailer 9
-
$2,620 AUD
$1,836 USD
View
B+
Retailer 10
-
$2,728 AUD
€1,821 EUR
View
B
Retailer 11
-
$3,054 AUD
$2,140 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKIGIOJKK · Nov 2
$3,400 AUD
$2,383 USD
View
11 more retailers have this diamond
Prices start from $1,886 AUDSave up to $1,514 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
$1,886 AUD