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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2547653720

Certificate GIA 2547653720

Diamond specifications and retailer prices

From £5,373 GBP
$7,210 USD
As of November 1, 2026
Save £4,424 GBP (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £9,797 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547653720. Listed at 12 retailers as of November 1, 2026, with prices from £5,373 to £9,797, a £4,424 spread on the same certified stone. MOH London lists it at £9,797. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2547653720
Dimensions10.55 × 5.97 × 3.75 mm
L/W Ratio1.77
Top View
10.55 mm5.97 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2547653720
Side View
Table 57.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.8%

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 1
Current: £9,797 GBP|Low: £5,373 GBP|High: £9,914 GBP|Avg: £7,217 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6£5,373 GBP
Retailer 8£5,561 GBP
Retailer 9£6,313 GBP
Retailer 5£6,507 GBP
Retailer 7£6,628 GBP
Retailer 11£6,722 GBP
Retailer 12£6,722 GBP
Retailer 3£6,945 GBP
Retailer 2£7,680 GBP
Retailer 10£7,740 GBP
Retailer 4£8,833 GBP
MOH London£9,797 GBP

32 data points across 12 retailers

12 retailers£5,373 GBP to £9,797 GBP

B+
Cheapest Retailer
-
£5,373 GBP
$7,210 USD
B+
Retailer 2
-
£5,561 GBP
$7,462 USD
View
B
Retailer 3
-
£6,313 GBP
$8,471 USD
View
B+
Retailer 4
-
£6,507 GBP
View
Retailer 5
-
£6,628 GBP
A$13,683 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
£6,722 GBP
$9,020 USD
View
B
Retailer 7
-
£6,722 GBP
$9,020 USD
View
B
Retailer 8
-
£6,945 GBP
$9,320 USD
View
B
Retailer 9
-
£7,032 GBP
$9,436 USD
View
B
Retailer 10
-
£7,680 GBP
€9,815 EUR
View
Retailer 11
-
£7,740 GBP
$10,387 USD
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
05593552D · Nov 2
£9,797 GBP
View
11 more retailers have this diamond
Prices start from £5,373 GBPSave up to £4,424 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
£5,373 GBP