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Marquise|Natural|IGI

1.51ct I IF Marquise Natural Diamond

VG • I/IF • IGI 841646172

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 841646172

Diamond specifications and retailer prices

From £4,939 GBP
$6,628 USD
As of November 1, 2026
Save £4,534 GBP (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £9,473 GBP at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 841646172. Listed at 16 retailers as of October 30, 2026, with prices from £4,939 to £9,473, a £4,534 spread on the same certified stone. NZ Jewellers lists it at £9,473. 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
I
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 841646172
Dimensions11.15 × 6.00 × 3.75 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
11.15 mm6.00 mm1.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 841646172
Side View
Table 59.0%Crown 39.8°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 62.5%

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 1
Current: £9,473 GBP|Low: £4,939 GBP|High: £9,920 GBP|Avg: £6,330 GBP|-4.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 7£4,939 GBP
Retailer 4£4,969 GBP
Retailer 2£5,036 GBP
Retailer 3£5,228 GBP
Retailer 5£5,228 GBP
Retailer 15£5,228 GBP
Retailer 10£5,368 GBP
Retailer 8£5,594 GBP
Retailer 12£5,663 GBP
Retailer 16£5,751 GBP
Retailer 6£6,133 GBP
Retailer 9£6,188 GBP
Retailer 14£6,535 GBP
Retailer 13£6,959 GBP
Retailer 11£7,893 GBP
NZ Jewellers£9,473 GBP

23 data points across 16 retailers

16 retailers£4,939 GBP to £9,473 GBP

A
Cheapest Retailer
-
£4,939 GBP
$6,628 USD
A
Retailer 2
-
£4,969 GBP
$6,668 USD
View
A
Retailer 3
-
£5,036 GBP
View
A
Retailer 4
-
£5,228 GBP
$7,015 USD
View
A
Retailer 5
-
£5,228 GBP
$7,015 USD
View
Final sale: no returns
A
Retailer 6
-
£5,228 GBP
$7,016 USD
View
A
Retailer 7
-
£5,368 GBP
View
Retailer 8
-
£5,594 GBP
₹714,990 INR
View
Price last confirmed 13 days ago
A
Retailer 9
-
£5,663 GBP
$7,600 USD
View
A
Retailer 10
-
£5,751 GBP
$7,717 USD
View
A
Retailer 11
-
£6,133 GBP
View
A
Retailer 12
-
£6,188 GBP
€7,908 EUR
View
A
Retailer 13
-
£6,535 GBP
$8,770 USD
View
A
Retailer 14
-
£6,959 GBP
ZAR 150,861 ZAR
View
B+
Retailer 15
-
£7,893 GBP
View
Most Expensive
B
NZ Jewellers
f75061e3-ea73-47e7-bd2f-1d878be516db · Oct 30
£9,473 GBP
$12,712 USD
View
15 more retailers have this diamond
Prices start from £4,939 GBPSave up to £4,534 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
£4,939 GBP