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Marquise|Natural|GIA

1.30ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 2558543004

Certificate GIA 2558543004

Diamond specifications and retailer prices

From £4,831 GBP
As of November 5, 2026
Save £1,490 GBP (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £6,321 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half 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 2558543004. Listed at 3 retailers as of November 5, 2026, with prices from £4,831 to £6,321, a £1,490 spread on the same certified stone. 77 Diamonds lists it at £6,321. 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

1.30
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558543004
Dimensions10.75 × 5.66 × 3.47 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
10.75 mm5.66 mm1.30 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558543004
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £6,321 GBP|Low: £4,160 GBP|High: £7,220 GBP|Avg: £5,363 GBP|+0.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7£4,160 GBP
Retailer 5£4,303 GBP
Retailer 3£4,831 GBP
Retailer 6£5,073 GBP
Retailer 2£5,098 GBP
Retailer 8£5,842 GBP
77 Diamonds£6,321 GBP
Retailer 4£7,220 GBP

35 data points across 8 retailers

3 retailers£4,831 GBP to £6,321 GBP

B+
Cheapest Retailer
-
£4,831 GBP
B+
Retailer 2
-
£5,098 GBP
View
Most Expensive
B
77 Diamonds
MQZFJDJSDJY · Nov 7
£6,321 GBP
View
2 more retailers have this diamond
Prices start from £4,831 GBPSave up to £1,490 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+
1.30ct Marquise
£4,831 GBP