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Marquise|Natural|GIA

0.80ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 3565688587

Certificate GIA 3565688587

Diamond specifications and retailer prices

From $2,390 NZD
SGD 1,817 SGD
As of October 31, 2026
Save $1,926 NZD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,315 NZD 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 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 3565688587. Listed at 13 retailers as of October 31, 2026, with prices from $2,390 to $4,315, a $1,926 spread on the same certified stone. Helzberg Diamonds lists it at $4,315. 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
SymmetryVery Good
FluorescenceNone
Crown angle39.91°
Pavilion angle39.69°
OriginNatural
Grading LabGIA
CertificateGIA 3565688587
Dimensions9.03 × 4.77 × 3.05 mm
L/W Ratio1.89
Culet sizeNone
Top View
9.03 mm4.77 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565688587
Side View
Table 59.0%Crown 39.91°Girdle: STK-VTKPavilion 39.69°Culet: NoneDepth 63.9%

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: $4,315 NZD|Low: $2,407 NZD|High: $4,315 NZD|Avg: $3,150 NZD
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$2,407 NZD
Retailer 6$2,444 NZD
Retailer 9$2,449 NZD
Retailer 12$2,534 NZD
Retailer 4$2,621 NZD
Retailer 5$2,668 NZD
Retailer 7$3,021 NZD
Retailer 3$3,310 NZD
Retailer 2$3,462 NZD
Retailer 11$3,670 NZD
Retailer 10$3,885 NZD
Helzberg Diamonds$4,315 NZD

11 data points across 12 retailers

13 retailers$2,390 NZD to $4,315 NZD

A
Cheapest Retailer
-
$2,390 NZD
SGD 1,817 SGD
A
Retailer 2
-
$2,407 NZD
$1,355 USD
View
A
Retailer 3
-
$2,444 NZD
$1,375 USD
View
A
Retailer 4
-
$2,449 NZD
$1,378 USD
View
A
Retailer 5
-
$2,534 NZD
$1,426 USD
View
A
Retailer 6
-
$2,621 NZD
SGD 1,993 SGD
View
A
Retailer 7
-
$2,668 NZD
£1,182 GBP
View
B+
Retailer 8
-
$3,021 NZD
$1,700 USD
View
B+
Retailer 9
-
$3,310 NZD
$1,863 USD
View
B+
Retailer 10
-
$3,462 NZD
€1,855 EUR
View
B
Retailer 11
-
$3,670 NZD
$2,065 USD
View
B
Retailer 12
-
$3,885 NZD
$2,186 USD
View
Most Expensive
B
Helzberg Diamonds
XZRJLMLMOOLON · Nov 2
$4,315 NZD
$2,428 USD
View
12 more retailers have this diamond
Prices start from $2,390 NZDSave up to $1,926 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
$2,390 NZD