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Marquise|Natural|GIA

0.81ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1559515648

Certificate GIA 1559515648

Diamond specifications and retailer prices

From $1,502 NZD
$845 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $1,502 NZD at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

About this 0.81ct natural marquise diamond

This 0.81ct 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 1559515648. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.81
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.24°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 1559515648
Dimensions9.33 × 4.91 × 3.10 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.33 mm4.91 mm0.81 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1559515648
Side View
Table 59.0%Crown 39.24°Girdle: MED-THKPavilion 40.11°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,180 NZD|Low: $752 NZD|High: $4,086 NZD|Avg: $2,252 NZD|-57.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
August 25, 2026
Retailer 4$752 NZD
Retailer 1$1,180 NZD
The Diamond Guys$1,502 NZD
Retailer 3$1,566 NZD
Retailer 7$1,781 NZD
Retailer 2$1,929 NZD
Retailer 5$1,935 NZD
Retailer 6$1,968 NZD
Retailer 8$3,066 NZD

43 data points across 9 retailers

1 retailer

B+
The Diamond Guys
1963431900 · Nov 2
$1,502 NZD
$845 USD
View

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.

B+
0.81ct Marquise
$1,502 NZD