CaratHunter
Plans
Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 5546345302

Certificate GIA 5546345302

Diamond specifications and retailer prices

From £7,273 GBP
$9,760 USD
As of November 2, 2026
Save £6,070 GBP (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £13,343 GBP at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546345302. Listed at 15 retailers as of November 2, 2026, with prices from £7,273 to £13,343, a £6,070 spread on the same certified stone. NZ Jewellers lists it at £13,343. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5546345302
Dimensions11.24 × 5.83 × 3.84 mm
L/W Ratio1.93
Top View
11.24 mm5.83 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5546345302
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

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 2
Current: £13,343 GBP|Low: £7,243 GBP|High: £13,343 GBP|Avg: £9,612 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 9£7,273 GBP
Retailer 6£8,005 GBP
Retailer 10£8,673 GBP
Retailer 2£8,739 GBP
Retailer 7£8,807 GBP
Retailer 3£9,020 GBP
Retailer 8£9,145 GBP
Retailer 4£10,085 GBP
Retailer 5£12,504 GBP
NZ Jewellers£13,343 GBP

44 data points across 10 retailers

15 retailers£7,273 GBP to £13,343 GBP

B+
Cheapest Retailer
-
£7,273 GBP
$9,760 USD
B+
Retailer 2
-
£7,501 GBP
$10,066 USD
View
B+
Retailer 3
-
£7,595 GBP
A$15,680 AUD
View
B
Retailer 4
-
£7,881 GBP
$10,576 USD
View
B
Retailer 5
-
£8,005 GBP
$10,742 USD
View
Final sale: no returns
B
Retailer 6
-
£8,673 GBP
$11,639 USD
View
B
Retailer 7
-
£8,739 GBP
View
B
Retailer 8
-
£8,807 GBP
$11,818 USD
View
B
Retailer 9
-
£9,020 GBP
View
B
Retailer 10
-
£9,145 GBP
$12,272 USD
View
B
Retailer 11
-
£9,628 GBP
$12,921 USD
View
B
Retailer 12
-
£10,007 GBP
$13,429 USD
View
B
Retailer 13
-
£10,085 GBP
€12,889 EUR
View
B
Retailer 14
-
£12,504 GBP
View
Most Expensive
B
NZ Jewellers
bd99867b-f986-4c3e-8015-60d6ae55dbfd · Nov 3
£13,343 GBP
$17,906 USD
View
14 more retailers have this diamond
Prices start from £7,273 GBPSave up to £6,070 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+
1.50ct Marquise
£7,273 GBP