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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 £3,156 GBP
As of November 5, 2026
Save £3,120 GBP (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,276 GBP 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 £3,156 to £6,276, a £3,120 spread on the same certified stone. Wholesale Diamonds Direct lists it at £6,276. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £3,698 GBP|Low: £3,139 GBP|High: £6,785 GBP|Avg: £4,366 GBP|-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£3,156 GBP
Retailer 6£3,616 GBP
Retailer 1£3,698 GBP
Retailer 9£3,810 GBP
Retailer 3£3,907 GBP
Retailer 4£4,015 GBP
Retailer 8£4,365 GBP
Retailer 7£4,370 GBP
Retailer 2£4,489 GBP
Wholesale Diamonds Direct£6,276 GBP

43 data points across 10 retailers

11 retailers£3,156 GBP to £6,276 GBP

A
Cheapest Retailer
-
£3,156 GBP
A
Retailer 2
-
£3,616 GBP
View
A
Retailer 3
-
£3,698 GBP
View
A
Retailer 4
-
£3,810 GBP
View
A
Retailer 5
-
£3,907 GBP
View
A
Retailer 6
-
£4,015 GBP
View
A
Retailer 7
-
£4,365 GBP
View
A
Retailer 8
-
£4,370 GBP
View
B+
Retailer 9
-
£4,489 GBP
View
B+
Retailer 10
-
£4,834 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
262936816 · Nov 6
£6,276 GBP
$8,400 USD
View
10 more retailers have this diamond
Prices start from £3,156 GBPSave up to £3,120 GBP

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
£3,156 GBP