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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564234109

Certificate GIA 2564234109

Diamond specifications and retailer prices

From £7,193 GBP
HK$75,300 HKD
As of October 31, 2026
Save £6,480 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £13,674 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 2564234109. Listed at 11 retailers as of October 30, 2026, with prices from £7,193 to £13,674, a £6,480 spread on the same certified stone. NZ Jewellers lists it at £13,674. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Pavilion angle41.04°
OriginNatural
Grading LabGIA
CertificateGIA 2564234109
Dimensions12.15 × 5.72 × 3.73 mm
L/W Ratio2.12
Key to symbols
Twinning Wisp, Crystal, Feather, Natural
Top View
12.15 mm5.72 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2564234109
Side View
Table 55.0%CrownGirdle: THK-VTKPavilion 41.04°Culet: NoneDepth 65.3%

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: £13,674 GBP|Low: £7,193 GBP|High: £13,798 GBP|Avg: £10,003 GBP|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9£7,193 GBP
Retailer 7£7,947 GBP
Retailer 2£8,539 GBP
Retailer 8£9,207 GBP
Retailer 11£9,747 GBP
Retailer 3£9,900 GBP
Retailer 5£10,096 GBP
Retailer 6£10,134 GBP
Retailer 4£12,460 GBP
Retailer 10£12,999 GBP
NZ Jewellers£13,674 GBP

11 data points across 11 retailers

11 retailers£7,193 GBP to £13,674 GBP

A
Cheapest Retailer
-
£7,193 GBP
HK$75,300 HKD
B+
Retailer 2
-
£7,947 GBP
€10,141 EUR
View
B+
Retailer 3
-
£8,539 GBP
$11,441 USD
View
B+
Retailer 4
-
£9,207 GBP
View
B
Retailer 5
-
£9,747 GBP
$13,060 USD
View
B+
Retailer 6
-
£9,900 GBP
$13,265 USD
View
B+
Retailer 7
-
£10,096 GBP
$13,528 USD
View
B+
Retailer 8
-
£10,134 GBP
€12,932 EUR
View
B
Retailer 9
-
£12,460 GBP
$16,695 USD
View
B
Retailer 10
-
£12,999 GBP
View
Most Expensive
B
NZ Jewellers
221050fd-396e-4ec7-8e7b-c1425e163983 · Oct 30
£13,674 GBP
$18,321 USD
View
10 more retailers have this diamond
Prices start from £7,193 GBPSave up to £6,480 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
£7,193 GBP