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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564024266

Certificate GIA 2564024266

Diamond specifications and retailer prices

From £6,978 GBP
$9,350 USD
As of October 31, 2026
Save £4,692 GBP (40%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £11,670 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 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 2564024266. Listed at 14 retailers as of October 30, 2026, with prices from £6,978 to £11,670, a £4,692 spread on the same certified stone. NZ Jewellers lists it at £11,670. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564024266
Dimensions11.17 × 6.01 × 3.76 mm
L/W Ratio1.86
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Needle
Top View
11.17 mm6.01 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564024266
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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: Oct 31
Current: £11,670 GBP|Low: £6,978 GBP|High: £12,023 GBP|Avg: £8,541 GBP|-2.9%
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
October 31, 2026
Retailer 2£6,978 GBP
Retailer 12£7,171 GBP
Retailer 6£7,274 GBP
Retailer 14£7,639 GBP
Retailer 7£7,664 GBP
Retailer 3£7,729 GBP
Retailer 4£7,729 GBP
Retailer 5£7,820 GBP
Retailer 8£7,858 GBP
Retailer 11£8,373 GBP
Retailer 13£8,502 GBP
Retailer 10£9,661 GBP
Retailer 9£10,994 GBP
NZ Jewellers£11,670 GBP

33 data points across 14 retailers

14 retailers£6,978 GBP to £11,670 GBP

A
Cheapest Retailer
-
£6,978 GBP
$9,350 USD
A
Retailer 2
-
£7,171 GBP
$9,609 USD
View
Retailer 3
-
£7,274 GBP
SGD 13,170 SGD
View
Price last confirmed 19 days ago
A
Retailer 4
-
£7,639 GBP
$10,235 USD
View
A
Retailer 5
-
£7,664 GBP
View
A
Retailer 6
-
£7,729 GBP
$10,356 USD
View
B+
Retailer 7
-
£7,729 GBP
$10,356 USD
View
Final sale: no returns
Retailer 8
-
£7,820 GBP
A$16,120 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£7,858 GBP
View
B+
Retailer 10
-
£8,373 GBP
$11,219 USD
View
B+
Retailer 11
-
£8,502 GBP
$11,392 USD
View
B+
Retailer 12
-
£9,661 GBP
$12,945 USD
View
B+
Retailer 13
-
£10,994 GBP
View
Most Expensive
B
NZ Jewellers
8216fa2d-64ce-4c00-9af0-9c4df310cdbc · Oct 30
£11,670 GBP
$15,637 USD
View
13 more retailers have this diamond
Prices start from £6,978 GBPSave up to £4,692 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
£6,978 GBP