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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 2557248303

Certificate GIA 2557248303

Diamond specifications and retailer prices

From £7,546 GBP
$10,126 USD
As of November 1, 2026
Save £2,642 GBP (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £10,187 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded F 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 2557248303. Listed at 4 retailers as of November 1, 2026, with prices from £7,546 to £10,187, a £2,642 spread on the same certified stone. 77 Diamonds lists it at £10,187. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557248303
Dimensions11.39 × 6.01 × 3.75 mm
L/W Ratio1.90
Top View
11.39 mm6.01 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557248303
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.4%

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: £10,187 GBP|Low: £7,546 GBP|High: £10,828 GBP|Avg: £8,976 GBP|+0.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2£7,546 GBP
Retailer 10£7,698 GBP
Retailer 9£7,985 GBP
Retailer 6£8,438 GBP
Retailer 3£8,769 GBP
Retailer 4£8,993 GBP
Retailer 5£9,281 GBP
Retailer 8£9,319 GBP
Retailer 11£9,630 GBP
77 Diamonds£10,187 GBP
Retailer 7£10,828 GBP

33 data points across 11 retailers

4 retailers£7,546 GBP to £10,187 GBP

B+
Cheapest Retailer
-
£7,546 GBP
$10,126 USD
B+
Retailer 2
-
£7,698 GBP
$10,330 USD
View
B
Retailer 3
-
£8,438 GBP
$11,324 USD
View
Most Expensive
B
77 Diamonds
MQZF6ZUFXRS · Nov 1
£10,187 GBP
View
3 more retailers have this diamond
Prices start from £7,546 GBPSave up to £2,642 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
£7,546 GBP