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Marquise|Natural|IGI

1.50ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 608304917

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 608304917

Diamond specifications and retailer prices

From £2,706 GBP
As of November 6, 2026
Save £3,564 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,270 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 608304917. Listed at 17 retailers as of November 5, 2026, with prices from £2,706 to £6,270, a £3,564 spread on the same certified stone. NZ Jewellers lists it at £6,270. 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

1.50
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.9°
Pavilion angle39.5°
OriginNatural
Grading LabIGI
CertificateIGI 608304917
Dimensions11.34 × 6.03 × 3.59 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizePointed
Top View
11.34 mm6.03 mm1.50 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 608304917
Side View
Table 64.0%Crown 37.9°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 59.5%

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 6
Current: £6,270 GBP|Low: £2,706 GBP|High: £6,270 GBP|Avg: £3,928 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 2£2,706 GBP
Retailer 8£3,153 GBP
Retailer 4£3,443 GBP
Retailer 5£3,590 GBP
Retailer 9£3,599 GBP
Retailer 11£3,599 GBP
Retailer 10£3,840 GBP
Retailer 3£4,152 GBP
Retailer 6£4,390 GBP
Retailer 7£5,715 GBP
NZ Jewellers£6,270 GBP

27 data points across 11 retailers

17 retailers£2,706 GBP to £6,270 GBP

A
Cheapest Retailer
-
£2,706 GBP
B+
Retailer 2
-
£3,139 GBP
View
B+
Retailer 3
-
£3,153 GBP
View
B+
Retailer 4
-
£3,168 GBP
View
B+
Retailer 5
-
£3,322 GBP
View
Final sale: no returns
B+
Retailer 6
-
£3,392 GBP
View
B+
Retailer 7
-
£3,443 GBP
View
B+
Retailer 8
-
£3,590 GBP
View
B+
Retailer 9
-
£3,599 GBP
View
Retailer 10
-
£3,599 GBP
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£3,599 GBP
View
B+
Retailer 12
-
£3,711 GBP
View
B+
Retailer 13
-
£3,840 GBP
View
B+
Retailer 14
-
£4,152 GBP
View
B+
Retailer 15
-
£4,390 GBP
View
B
Retailer 16
-
£5,715 GBP
View
Most Expensive
B
NZ Jewellers
b58f0886-c6a0-4eee-9b80-2efcdd9aa07d · Nov 5
£6,270 GBP
$8,392 USD
View
16 more retailers have this diamond
Prices start from £2,706 GBPSave up to £3,564 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
1.50ct Marquise
£2,706 GBP