CaratHunter
Plans
Marquise|Natural|IGI

1.51ct J I1 Marquise Natural Diamond

VG • J/I1 • IGI 811694598

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 811694598

Diamond specifications and retailer prices

From £1,526 GBP
₹195,083 INR
As of November 2, 2026
Save £2,495 GBP (62%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,021 GBP at NZ Jewellers · As of November 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 J colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 811694598. Listed at 10 retailers as of November 2, 2026, with prices from £1,526 to £4,021, a £2,495 spread on the same certified stone. NZ Jewellers lists it at £4,021. 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle37.1°
OriginNatural
Grading LabIGI
CertificateIGI 811694598
Dimensions11.41 × 5.98 × 3.67 mm
L/W Ratio1.91
Girdle conditionFaceted
Top View
11.41 mm5.98 mm1.51 ctJ / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 811694598
Side View
Table 58.0%Crown 42.3°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £4,021 GBP|Low: £1,526 GBP|High: £4,139 GBP|Avg: £2,064 GBP|-2.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2£1,526 GBP
Retailer 3£1,654 GBP
Retailer 5£1,722 GBP
Retailer 4£1,771 GBP
Retailer 9£1,776 GBP
Retailer 6£1,923 GBP
Retailer 8£1,923 GBP
Retailer 7£2,012 GBP
Retailer 10£2,219 GBP
NZ Jewellers£4,021 GBP

12 data points across 10 retailers

10 retailers£1,526 GBP to £4,021 GBP

A
Cheapest Retailer
-
£1,526 GBP
₹195,083 INR
A
Retailer 2
-
£1,654 GBP
$2,220 USD
View
B+
Retailer 3
-
£1,722 GBP
$2,311 USD
View
B+
Retailer 4
-
£1,771 GBP
$2,377 USD
View
B+
Retailer 5
-
£1,776 GBP
$2,383 USD
View
Final sale: no returns
B+
Retailer 6
-
£1,923 GBP
$2,581 USD
View
B+
Retailer 7
-
£1,923 GBP
$2,581 USD
View
B+
Retailer 8
-
£2,012 GBP
$2,700 USD
View
B+
Retailer 9
-
£2,219 GBP
$2,978 USD
View
Most Expensive
B+
NZ Jewellers
556e692e-8569-4c8f-bf0f-7ca0389884d8 · Nov 3
£4,021 GBP
$5,396 USD
View
9 more retailers have this diamond
Prices start from £1,526 GBPSave up to £2,495 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
£1,526 GBP