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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1568225247

Certificate GIA 1568225247

Diamond specifications and retailer prices

From £8,401 GBP
$11,257 USD
As of October 30, 2026
Save £6,543 GBP (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £14,945 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 1568225247. Listed at 10 retailers as of October 30, 2026, with prices from £8,401 to £14,945, a £6,543 spread on the same certified stone. NZ Jewellers lists it at £14,945. 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 1568225247
Dimensions11.28 × 5.93 × 3.74 mm
L/W Ratio1.90
Girdle conditionFaceted
Top View
11.28 mm5.93 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568225247
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCuletDepth 63.1%

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 30
Current: £14,945 GBP|Low: £8,401 GBP|High: £14,945 GBP|Avg: £10,634 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8£8,401 GBP
Retailer 10£8,529 GBP
Retailer 6£9,565 GBP
Retailer 3£9,660 GBP
Retailer 7£9,714 GBP
Retailer 2£10,063 GBP
Retailer 9£10,087 GBP
Retailer 5£10,919 GBP
Retailer 4£14,079 GBP
NZ Jewellers£14,945 GBP

40 data points across 10 retailers

10 retailers£8,401 GBP to £14,945 GBP

B+
Cheapest Retailer
-
£8,401 GBP
$11,257 USD
B+
Retailer 2
-
£8,529 GBP
CA$15,872 CAD
View
B
Retailer 3
-
£9,565 GBP
$12,816 USD
View
B+
Retailer 4
-
£9,660 GBP
View
B
Retailer 5
-
£9,714 GBP
$13,016 USD
View
B+
Retailer 6
-
£10,063 GBP
View
B+
Retailer 7
-
£10,087 GBP
$13,516 USD
View
B
Retailer 8
-
£10,919 GBP
€13,933 EUR
View
B
Retailer 9
-
£14,079 GBP
View
Most Expensive
B
NZ Jewellers
74102820-ddbd-44c3-b994-c6a0c76f7b2f · Oct 30
£14,945 GBP
$20,024 USD
View
9 more retailers have this diamond
Prices start from £8,401 GBPSave up to £6,543 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
£8,401 GBP