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Marquise|Natural|GIA

1.80ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1559722711

Certificate GIA 1559722711

Diamond specifications and retailer prices

From $7,620 NZD
As of November 5, 2026
Save $7,533 NZD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,153 NZD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.8ct natural marquise diamond

This 1.8ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559722711. Listed at 11 retailers as of November 5, 2026, with prices from $7,620 to $15,153, a $7,533 spread on the same certified stone. Wholesale Diamonds Direct lists it at $15,153. 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

1.80
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.95°
Pavilion angle37.68°
OriginNatural
Grading LabGIA
CertificateGIA 1559722711
Dimensions12.06 × 6.23 × 3.81 mm
L/W Ratio1.94
Culet sizeNone
Top View
12.06 mm6.23 mm1.80 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559722711
Side View
Table 58.0%Crown 39.95°Girdle: ThickPavilion 37.68°Culet: NoneDepth 61.1%

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: Nov 5
Current: $8,929 NZD|Low: $7,578 NZD|High: $16,382 NZD|Avg: $10,541 NZD|-7.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 5$7,620 NZD
Retailer 6$8,731 NZD
Retailer 1$8,929 NZD
Retailer 9$9,200 NZD
Retailer 3$9,433 NZD
Retailer 4$9,694 NZD
Retailer 8$10,540 NZD
Retailer 7$10,551 NZD
Retailer 2$10,838 NZD
Wholesale Diamonds Direct$15,153 NZD

43 data points across 10 retailers

11 retailers$7,620 NZD to $15,153 NZD

A
Cheapest Retailer
-
$7,620 NZD
A
Retailer 2
-
$8,731 NZD
View
A
Retailer 3
-
$8,929 NZD
View
A
Retailer 4
-
$9,200 NZD
View
A
Retailer 5
-
$9,433 NZD
View
A
Retailer 6
-
$9,694 NZD
View
A
Retailer 7
-
$10,540 NZD
View
A
Retailer 8
-
$10,551 NZD
View
B+
Retailer 9
-
$10,838 NZD
View
B+
Retailer 10
-
$11,671 NZD
View
Most Expensive
B
Wholesale Diamonds Direct
262936816 · Nov 6
$15,153 NZD
$8,400 USD
View
10 more retailers have this diamond
Prices start from $7,620 NZDSave up to $7,533 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
1.80ct Marquise
$7,620 NZD