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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1565093496

Certificate GIA 1565093496

Diamond specifications and retailer prices

From £7,921 GBP
A$16,328 AUD
As of October 29, 2026
Save £7,504 GBP (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £15,424 GBP at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565093496. Listed at 14 retailers as of October 29, 2026, with prices from £7,921 to £15,424, a £7,504 spread on the same certified stone. NZ Jewellers lists it at £15,424. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565093496
Dimensions11.96 × 5.87 × 3.77 mm
L/W Ratio2.04
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Needle
Top View
11.96 mm5.87 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565093496
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.3%

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: Oct 29
Current: £15,424 GBP|Low: £8,876 GBP|High: £15,424 GBP|Avg: £11,322 GBP
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
October 30, 2026
Retailer 7£8,876 GBP
Retailer 13£9,478 GBP
Retailer 6£9,729 GBP
Retailer 12£9,790 GBP
Retailer 14£10,034 GBP
Retailer 11£10,077 GBP
Retailer 2£10,386 GBP
Retailer 15£10,896 GBP
Retailer 4£11,067 GBP
Retailer 5£11,342 GBP
Retailer 3£11,492 GBP
Retailer 9£11,643 GBP
Retailer 10£13,524 GBP
Retailer 8£14,530 GBP
NZ Jewellers£15,424 GBP

36 data points across 15 retailers

14 retailers£7,921 GBP to £15,424 GBP

B+
Cheapest Retailer
-
£7,921 GBP
A$16,328 AUD
B+
Retailer 2
-
£9,478 GBP
$12,700 USD
View
B
Retailer 3
-
£9,790 GBP
$13,117 USD
View
Final sale: no returns
B+
Retailer 4
-
£10,034 GBP
$13,445 USD
View
B+
Retailer 5
-
£10,077 GBP
A$20,772 AUD
View
B+
Retailer 6
-
£10,386 GBP
View
B
Retailer 7
-
£10,896 GBP
$14,600 USD
View
B
Retailer 8
-
£11,067 GBP
$14,828 USD
View
B
Retailer 9
-
£11,342 GBP
$15,197 USD
View
B
Retailer 10
-
£11,492 GBP
$15,398 USD
View
B
Retailer 11
-
£11,643 GBP
€14,857 EUR
View
B
Retailer 12
-
£13,524 GBP
ZAR 292,739 ZAR
View
B
Retailer 13
-
£14,530 GBP
View
Most Expensive
B
NZ Jewellers
3f3dd080-c26f-48cc-ae1d-bfa37b6cd508 · Oct 30
£15,424 GBP
$20,667 USD
View
13 more retailers have this diamond
Prices start from £7,921 GBPSave up to £7,504 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
£7,921 GBP