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Marquise|Natural|GIA

0.80ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6561457556

Certificate GIA 6561457556

Diamond specifications and retailer prices

From $1,385 AUD
$970 USD
As of October 31, 2026
Save $726 AUD (34%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,260 AUD at Wholesale Diamonds Direct · As of October 12, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561457556. Listed at 9 retailers as of October 31, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.94°
Pavilion angle40.24°
OriginNatural
Grading LabGIA
CertificateGIA 6561457556
Dimensions9.41 × 4.82 × 3.01 mm
L/W Ratio1.95
Culet sizeNone
Top View
9.41 mm4.82 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561457556
Side View
Table 59.0%Crown 38.94°Girdle: STK-THKPavilion 40.24°Culet: NoneDepth 62.5%

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: $2,006 AUD|Low: $1,246 AUD|High: $2,260 AUD|Avg: $1,750 AUD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 2, 2026
Retailer 4$1,249 AUD
Retailer 6$1,385 AUD
Retailer 3$1,455 AUD
Retailer 5$1,455 AUD
Retailer 8$1,509 AUD
Retailer 2$1,715 AUD
Retailer 1$2,006 AUD
Retailer 9$2,086 AUD
Retailer 7$2,110 AUD
Wholesale Diamonds Direct$2,260 AUD

13 data points across 10 retailers

9 retailers$1,385 AUD to $2,110 AUD

A
Cheapest Retailer
-
$1,385 AUD
$970 USD
A
Retailer 2
-
$1,455 AUD
$1,020 USD
View
A
Retailer 3
-
$1,455 AUD
$1,020 USD
View
A
Retailer 4
-
$1,509 AUD
SGD 1,429 SGD
View
A
Retailer 5
-
$1,715 AUD
$1,202 USD
View
A
Retailer 6
-
$2,006 AUD
€1,339 EUR
View
B+
Retailer 7
-
$2,086 AUD
$1,462 USD
View
B+
Retailer 8
-
$2,110 AUD
$1,479 USD
View
Most Expensive
Wholesale Diamonds Direct
515662358 · Oct 12
$2,260 AUD
$1,584 USD
View
Price last confirmed 21 days ago
8 more retailers have this diamond
Prices start from $1,385 AUDSave up to $726 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
$1,385 AUD