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Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 1568681688

Certificate GIA 1568681688

Diamond specifications and retailer prices

From £2,287 GBP
As of November 5, 2026
Save £2,409 GBP (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,696 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 J 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 1568681688. Listed at 10 retailers as of November 5, 2026, with prices from £2,287 to £4,696, a £2,409 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,696. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.28°
Pavilion angle42.05°
OriginNatural
Grading LabGIA
CertificateGIA 1568681688
Dimensions11.51 × 6.05 × 3.82 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.51 mm6.05 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1568681688
Side View
Table 60.0%Crown 35.28°Girdle: MED-THKPavilion 42.05°Culet: NDepth 63.1%

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: £3,320 GBP|Low: £2,283 GBP|High: £4,696 GBP|Avg: £3,182 GBP|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 2£2,287 GBP
Retailer 3£2,582 GBP
Retailer 5£2,760 GBP
Retailer 8£2,761 GBP
Retailer 7£2,820 GBP
Retailer 4£3,281 GBP
Retailer 6£3,316 GBP
Retailer 1£3,320 GBP
Wholesale Diamonds Direct£4,696 GBP

11 data points across 9 retailers

10 retailers£2,287 GBP to £4,696 GBP

A
Cheapest Retailer
-
£2,287 GBP
A
Retailer 2
-
£2,582 GBP
View
A
Retailer 3
-
£2,760 GBP
View
A
Retailer 4
-
£2,761 GBP
View
A
Retailer 5
-
£2,761 GBP
View
A
Retailer 6
-
£2,820 GBP
View
B+
Retailer 7
-
£3,281 GBP
View
B+
Retailer 8
-
£3,316 GBP
View
A
Retailer 9
-
£3,320 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
610869279 · Nov 6
£4,696 GBP
$6,285 USD
View
9 more retailers have this diamond
Prices start from £2,287 GBPSave up to £2,409 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
£2,287 GBP