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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6545340711

Certificate GIA 6545340711

Diamond specifications and retailer prices

From £6,300 GBP
$8,441 USD
As of October 30, 2026
Save £5,602 GBP (47%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £11,902 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545340711. Listed at 18 retailers as of October 30, 2026, with prices from £6,300 to £11,902, a £5,602 spread on the same certified stone. NZ Jewellers lists it at £11,902. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545340711
Dimensions11.06 × 5.88 × 3.92 mm
L/W Ratio1.88
Top View
11.06 mm5.88 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545340711
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.6%

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 30
Current: £11,902 GBP|Low: £6,222 GBP|High: £11,902 GBP|Avg: £8,157 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 31, 2026
Retailer 3£6,300 GBP
Retailer 4£6,799 GBP
Retailer 11£7,141 GBP
Retailer 15£7,141 GBP
Retailer 5£7,202 GBP
Retailer 12£7,266 GBP
Retailer 7£7,616 GBP
Retailer 10£7,736 GBP
Retailer 2£7,818 GBP
Retailer 14£7,855 GBP
Retailer 13£8,926 GBP
Retailer 8£8,998 GBP
Retailer 6£9,398 GBP
Retailer 9£11,213 GBP
NZ Jewellers£11,902 GBP

40 data points across 15 retailers

18 retailers£6,300 GBP to £11,902 GBP

A
Cheapest Retailer
-
£6,300 GBP
$8,441 USD
A
Retailer 2
-
£6,607 GBP
$8,853 USD
View
A
Retailer 3
-
£6,626 GBP
$8,878 USD
View
A
Retailer 4
-
£6,693 GBP
A$13,797 AUD
View
A
Retailer 5
-
£6,799 GBP
$9,110 USD
View
B+
Retailer 6
-
£7,141 GBP
$9,568 USD
View
Final sale: no returns
A
Retailer 7
-
£7,141 GBP
$9,568 USD
View
B+
Retailer 8
-
£7,266 GBP
$9,736 USD
View
B+
Retailer 9
-
£7,616 GBP
$10,204 USD
View
B+
Retailer 10
-
£7,736 GBP
$10,366 USD
View
B+
Retailer 11
-
£7,818 GBP
View
B+
Retailer 12
-
£7,855 GBP
$10,525 USD
View
B+
Retailer 13
-
£8,926 GBP
$11,960 USD
View
Retailer 14
-
£8,926 GBP
$11,960 USD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
£8,998 GBP
€11,482 EUR
View
Retailer 16
-
£9,398 GBP
$12,592 USD
View
Price last confirmed 16 days ago
B
Retailer 17
-
£11,213 GBP
View
Most Expensive
B
NZ Jewellers
b2489fcf-b846-4fc4-a115-469532cfdb69 · Oct 30
£11,902 GBP
$15,947 USD
View
17 more retailers have this diamond
Prices start from £6,300 GBPSave up to £5,602 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
£6,300 GBP