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Marquise|Natural|EGL

1.51ct H SI1 Marquise Natural Diamond

ID • H/SI1 • EGL 926817011d

Certificate EGL 926817011d

Diamond specifications and retailer prices

From £4,616 GBP
As of November 3, 2026
Save £3,906 GBP (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £8,522 GBP at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by EGL 926817011d. Listed at 7 retailers as of November 3, 2026, with prices from £4,616 to £8,522, a £3,906 spread on the same certified stone. NZ Jewellers lists it at £8,522. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabEGL
CertificateEGL 926817011d
Dimensions6.17 × 11.82 × 3.53 mm
L/W Ratio1.92
Top View
6.17 mm11.82 mm1.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateEGL 926817011d
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 57.2%

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: Nov 3
Current: £8,522 GBP|Low: £4,025 GBP|High: £8,522 GBP|Avg: £5,735 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 4, 2026
Retailer 7£4,025 GBP
Retailer 3£4,616 GBP
Retailer 4£4,616 GBP
Retailer 5£4,616 GBP
Retailer 6£5,327 GBP
Retailer 2£7,487 GBP
NZ Jewellers£8,522 GBP

13 data points across 7 retailers

7 retailers£4,616 GBP to £8,522 GBP

Retailer 1
-
£4,025 GBP
Price last confirmed 12 days ago
B+
Retailer 2
-
£4,616 GBP
View
B+
Retailer 3
-
£4,616 GBP
View
Retailer 4
-
£4,616 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£5,327 GBP
View
B
Retailer 6
-
£7,487 GBP
View
Most Expensive
B
NZ Jewellers
f0e2b60d-a4d3-488d-a543-3af198c0afb6 · Nov 3
£8,522 GBP
$11,407 USD
View
6 more retailers have this diamond
Prices start from £4,616 GBPSave up to £3,906 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+
1.51ct Marquise
£4,616 GBP