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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 6541995939

Certificate GIA 6541995939

Diamond specifications and retailer prices

From £7,460 GBP
$10,011 USD
As of November 1, 2026
Save £2,606 GBP (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £10,066 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 6541995939. Listed at 4 retailers as of November 1, 2026, with prices from £7,460 to £10,066, a £2,606 spread on the same certified stone. 77 Diamonds lists it at £10,066. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541995939
Dimensions11.57 × 5.99 × 3.71 mm
L/W Ratio1.93
Top View
11.57 mm5.99 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541995939
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.9%

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: £10,066 GBP|Low: £6,772 GBP|High: £10,604 GBP|Avg: £8,546 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 10£6,772 GBP
Retailer 8£7,169 GBP
Retailer 2£7,460 GBP
Retailer 5£7,903 GBP
Retailer 11£8,171 GBP
Retailer 6£8,337 GBP
Retailer 3£8,949 GBP
Retailer 4£9,176 GBP
Retailer 9£9,333 GBP
77 Diamonds£10,066 GBP
Retailer 7£10,604 GBP

35 data points across 11 retailers

4 retailers£7,460 GBP to £10,066 GBP

B+
Cheapest Retailer
-
£7,460 GBP
$10,011 USD
B+
Retailer 2
-
£7,903 GBP
$10,605 USD
View
B
Retailer 3
-
£8,337 GBP
$11,188 USD
View
Most Expensive
B
77 Diamonds
MQZHUVJPYD4 · Nov 1
£10,066 GBP
View
3 more retailers have this diamond
Prices start from £7,460 GBPSave up to £2,606 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
£7,460 GBP