CaratHunter
Plans
Marquise|Natural|GIA

1.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 5242001666

Certificate GIA 5242001666

Diamond specifications and retailer prices

From £5,752 GBP
As of November 4, 2026
Save £4,540 GBP (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £11,342 GBP at NZ Jewellers · As of September 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242001666. Listed at 13 retailers as of November 4, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242001666
Dimensions11.75 × 5.93 × 3.72 mm
L/W Ratio1.98
Girdle conditionFaceted
Top View
11.75 mm5.93 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242001666
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.7%

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 4
Current: £8,125 GBP|Low: £5,752 GBP|High: £10,687 GBP|Avg: £6,996 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3£5,752 GBP
Retailer 11£5,829 GBP
Retailer 9£6,127 GBP
Retailer 4£6,133 GBP
Retailer 10£6,370 GBP
Retailer 7£6,483 GBP
Retailer 2£6,608 GBP
Retailer 5£6,844 GBP
Retailer 12£6,847 GBP
Retailer 1£8,125 GBP
Retailer 8£8,266 GBP
Retailer 6£10,293 GBP

40 data points across 12 retailers

13 retailers£5,752 GBP to £10,293 GBP

A
Cheapest Retailer
-
£5,752 GBP
A
Retailer 2
-
£5,829 GBP
View
A
Retailer 3
-
£6,127 GBP
View
A
Retailer 4
-
£6,133 GBP
View
A
Retailer 5
-
£6,370 GBP
View
A
Retailer 6
-
£6,483 GBP
View
A
Retailer 7
-
£6,608 GBP
View
Final sale: no returns
A
Retailer 8
-
£6,844 GBP
View
A
Retailer 9
-
£6,847 GBP
View
B+
Retailer 10
-
£8,125 GBP
View
B+
Retailer 11
-
£8,266 GBP
View
B+
Retailer 12
-
£10,293 GBP
View
Most Expensive
NZ Jewellers
033a0c2e-f310-45ea-9653-ad70427ba0cb · Sep 30
£11,342 GBP
$15,265 USD
View
Price last confirmed 36 days ago
12 more retailers have this diamond
Prices start from £5,752 GBPSave up to £4,540 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
£5,752 GBP