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Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 7558309385

Certificate GIA 7558309385

Diamond specifications and retailer prices

From £1,920 GBP
As of November 5, 2026
Save £1,950 GBP (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,870 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct 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 7558309385. Listed at 10 retailers as of November 5, 2026, with prices from £1,920 to £3,870, a £1,950 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,870. 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

1.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.92°
Pavilion angle38.88°
OriginNatural
Grading LabGIA
CertificateGIA 7558309385
Dimensions11.13 × 5.88 × 3.73 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.13 mm5.88 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558309385
Side View
Table 59.0%Crown 39.92°Girdle: MED-THKPavilion 38.88°Culet: NoneDepth 63.5%

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: £2,291 GBP|Low: £1,871 GBP|High: £4,408 GBP|Avg: £2,787 GBP|-12.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 3£1,871 GBP
Retailer 6£1,920 GBP
Retailer 7£2,125 GBP
Retailer 1£2,291 GBP
Retailer 4£2,392 GBP
Retailer 10£2,560 GBP
Retailer 8£2,728 GBP
Retailer 9£2,787 GBP
Retailer 5£2,826 GBP
Retailer 2£2,898 GBP
Retailer 11£3,645 GBP
Wholesale Diamonds Direct£3,870 GBP

33 data points across 12 retailers

10 retailers£1,920 GBP to £3,870 GBP

A
Cheapest Retailer
-
£1,920 GBP
A
Retailer 2
-
£2,125 GBP
View
A
Retailer 3
-
£2,291 GBP
View
A
Retailer 4
-
£2,392 GBP
View
A
Retailer 5
-
£2,560 GBP
View
A
Retailer 6
-
£2,728 GBP
View
A
Retailer 7
-
£2,787 GBP
View
A
Retailer 8
-
£2,826 GBP
View
B+
Retailer 9
-
£2,898 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
262936460 · Nov 6
£3,870 GBP
$5,180 USD
View
9 more retailers have this diamond
Prices start from £1,920 GBPSave up to £1,950 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
1.51ct Marquise
£1,920 GBP