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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 $1,725 NZD
$970 USD
As of October 31, 2026
Save $904 NZD (34%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,815 NZD 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: $2,499 NZD|Low: $1,552 NZD|High: $2,815 NZD|Avg: $2,180 NZD|+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$1,556 NZD
Retailer 6$1,725 NZD
Retailer 3$1,813 NZD
Retailer 5$1,813 NZD
Retailer 8$1,879 NZD
Retailer 2$2,136 NZD
Retailer 1$2,499 NZD
Retailer 9$2,598 NZD
Retailer 7$2,629 NZD
Wholesale Diamonds Direct$2,815 NZD

13 data points across 10 retailers

9 retailers$1,725 NZD to $2,629 NZD

A
Cheapest Retailer
-
$1,725 NZD
$970 USD
A
Retailer 2
-
$1,813 NZD
$1,020 USD
View
A
Retailer 3
-
$1,813 NZD
$1,020 USD
View
A
Retailer 4
-
$1,879 NZD
SGD 1,429 SGD
View
A
Retailer 5
-
$2,136 NZD
$1,202 USD
View
A
Retailer 6
-
$2,499 NZD
€1,339 EUR
View
B+
Retailer 7
-
$2,598 NZD
$1,462 USD
View
B+
Retailer 8
-
$2,629 NZD
$1,479 USD
View
Most Expensive
Wholesale Diamonds Direct
515662358 · Oct 12
$2,815 NZD
$1,584 USD
View
Price last confirmed 21 days ago
8 more retailers have this diamond
Prices start from $1,725 NZDSave up to $904 NZD

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
$1,725 NZD