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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

GD • F/SI1 • GIA 2557666304

Certificate GIA 2557666304

Diamond specifications and retailer prices

From £5,448 GBP
₹696,316 INR
As of November 2, 2026
Save £1,322 GBP (20%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £6,771 GBP at GemTrove · As of November 3, 2026
View at GemTrove

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2557666304. Listed at 4 retailers as of November 2, 2026, with prices from £5,448 to £6,771, a £1,322 spread on the same certified stone. GemTrove lists it at £6,771. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2557666304
Dimensions10.86 × 5.88 × 3.88 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
10.86 mm5.88 mm1.51 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2557666304
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.1%

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: Nov 2
Current: £6,771 GBP|Low: £5,437 GBP|High: £7,161 GBP|Avg: £6,165 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2£5,448 GBP
Retailer 5£5,571 GBP
Retailer 6£6,016 GBP
Retailer 3£6,208 GBP
GemTrove£6,771 GBP
Retailer 4£7,011 GBP

45 data points across 6 retailers

4 retailers£5,448 GBP to £6,771 GBP

A
Cheapest Retailer
-
£5,448 GBP
₹696,316 INR
Retailer 2
-
£5,571 GBP
SGD 10,103 SGD
View
Price last confirmed 29 days ago
Retailer 3
-
£6,016 GBP
$8,073 USD
View
Price last confirmed 28 days ago
Most Expensive
B
GemTrove
GT-N-01274100-98 · Nov 3
£6,771 GBP
A$13,978 AUD
View
3 more retailers have this diamond
Prices start from £5,448 GBPSave up to £1,322 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
£5,448 GBP