CaratHunter
Plans
Marquise|Natural|IGI

1.51ct M SI2 Marquise Natural Diamond

VG • M/SI2 • IGI 696515927

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 696515927

Diamond specifications and retailer prices

From £1,713 GBP
As of November 4, 2026
Save £498 GBP (23%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,966 GBP at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 696515927. Listed at 11 retailers as of November 4, 2026, with a 29% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 696515927
Dimensions11.60 × 6.03 × 3.85 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
11.60 mm6.03 mm1.51 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 696515927
Side View
Table 58.0%Crown 33°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,966 GBP|Low: £1,059 GBP|High: £3,966 GBP|Avg: £2,019 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£1,059 GBP
Retailer 9£1,713 GBP
Retailer 8£1,788 GBP
Retailer 4£1,897 GBP
Retailer 6£1,897 GBP
Retailer 10£1,902 GBP
Retailer 7£2,002 GBP
Retailer 5£2,189 GBP
Retailer 2£2,211 GBP
Retailer 11£2,435 GBP
NZ Jewellers£3,966 GBP

19 data points across 11 retailers

11 retailers£1,713 GBP to £2,211 GBP

Retailer 1
-
£1,673 GBP
Price last confirmed 36 days ago
B+
Retailer 2
-
£1,713 GBP
View
B+
Retailer 3
-
£1,788 GBP
View
Retailer 4
-
£1,897 GBP
View
Price last confirmed 33 days ago
B+
Retailer 5
-
£1,897 GBP
View
Retailer 6
-
£1,897 GBP
View
Price last confirmed 12 days ago
B+
Retailer 7
-
£2,002 GBP
View
Retailer 8
-
£2,189 GBP
View
Price last confirmed 33 days ago
B+
Retailer 9
-
£2,189 GBP
View
B+
Retailer 10
-
£2,211 GBP
View
Most Expensive
NZ Jewellers
a6ba854c-e077-4919-b9cc-a77dba299b5e · Oct 3
£3,966 GBP
$5,309 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from £1,713 GBPSave up to £498 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.

B+
1.51ct Marquise
£1,713 GBP