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Marquise|Natural|GIA

0.80ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 5556742508

Certificate GIA 5556742508

Diamond specifications and retailer prices

From $1,773 AUD
SGD 1,683 SGD
As of October 31, 2026
Save $2,988 AUD (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,761 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded I 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 5556742508. Listed at 5 retailers as of October 30, 2026, with prices from $1,773 to $4,761, a $2,988 spread on the same certified stone. NZ Jewellers lists it at $4,761. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40°
OriginNatural
Grading LabGIA
CertificateGIA 5556742508
Dimensions9.76 × 4.68 × 2.97 mm
L/W Ratio2.09
Culet sizeNone
Key to symbols
Feather, Crystal, Knot
Top View
9.76 mm4.68 mm0.80 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556742508
Side View
Table 61.0%Crown 40°Girdle: THK-VTKPavilionCulet: NoneDepth 63.5%

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: $4,761 AUD|Low: $1,673 AUD|High: $4,825 AUD|Avg: $2,741 AUD|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4$1,773 AUD
Retailer 5$1,801 AUD
Retailer 3$2,157 AUD
Retailer 2$2,529 AUD
Retailer 6$2,852 AUD
NZ Jewellers$4,761 AUD

43 data points across 6 retailers

5 retailers$1,773 AUD to $4,761 AUD

A
Cheapest Retailer
-
$1,773 AUD
SGD 1,683 SGD
A
Retailer 2
-
$1,801 AUD
$1,265 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,157 AUD
£1,193 GBP
View
B+
Retailer 4
-
$2,529 AUD
€1,692 EUR
View
Most Expensive
B
NZ Jewellers
308be040-1b08-4330-915c-2e772a813a34 · Oct 30
$4,761 AUD
$3,344 USD
View
4 more retailers have this diamond
Prices start from $1,773 AUDSave up to $2,988 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
$1,773 AUD