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Marquise|Natural|IGI

1.51ct J SI2 Marquise Natural Diamond

VG • J/SI2 • IGI 803677736

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803677736

Diamond specifications and retailer prices

From £1,461 GBP
As of November 5, 2026
Save £1,563 GBP (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,024 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 very-good cut grade and certified by IGI 803677736. Listed at 6 retailers as of November 5, 2026, with prices from £1,461 to £3,024, a £1,563 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,024. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 803677736
Dimensions10.72 × 5.79 × 3.81 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.72 mm5.79 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803677736
Side View
Table 60.0%Crown 43.9°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 65.8%

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: £1,759 GBP|Low: £1,452 GBP|High: £3,515 GBP|Avg: £2,234 GBP|-14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 2£1,461 GBP
Retailer 7£1,474 GBP
Retailer 1£1,759 GBP
Retailer 3£1,763 GBP
Retailer 4£2,201 GBP
Retailer 8£2,284 GBP
Retailer 5£2,382 GBP
Retailer 6£2,878 GBP
Wholesale Diamonds Direct£3,024 GBP

32 data points across 9 retailers

6 retailers£1,461 GBP to £3,024 GBP

A
Cheapest Retailer
-
£1,461 GBP
A
Retailer 2
-
£1,759 GBP
View
A
Retailer 3
-
£1,763 GBP
View
B+
Retailer 4
-
£2,201 GBP
View
B+
Retailer 5
-
£2,284 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
262936441 · Nov 6
£3,024 GBP
$4,047 USD
View
5 more retailers have this diamond
Prices start from £1,461 GBPSave up to £1,563 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
£1,461 GBP