CaratHunter
Plans
Marquise|Natural|GIA

1.00ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 5553455607

Certificate GIA 5553455607

Diamond specifications and retailer prices

From £1,459 GBP
As of November 6, 2026
Save £1,962 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,093 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553455607. Listed at 16 retailers as of November 4, 2026, with a 134% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553455607
Dimensions9.88 × 5.22 × 3.31 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Knot, Needle
Top View
9.88 mm5.22 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553455607
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.3%

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 6
Current: £1,830 GBP|Low: £1,459 GBP|High: £3,471 GBP|Avg: £2,035 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4£1,459 GBP
Retailer 9£1,551 GBP
Retailer 3£1,753 GBP
Retailer 1£1,830 GBP
Retailer 2£1,890 GBP
Retailer 5£1,925 GBP
Retailer 10£1,958 GBP
Retailer 11£2,034 GBP
Retailer 7£2,060 GBP
Retailer 6£2,282 GBP
Retailer 8£3,421 GBP

27 data points across 11 retailers

16 retailers£1,459 GBP to £3,421 GBP

A
Cheapest Retailer
-
£1,459 GBP
A
Retailer 2
-
£1,551 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,653 GBP
View
A
Retailer 4
-
£1,753 GBP
View
A
Retailer 5
-
£1,830 GBP
View
A
Retailer 6
-
£1,890 GBP
View
A
Retailer 7
-
£1,925 GBP
View
Retailer 8
-
£1,958 GBP
View
Price last confirmed 39 days ago
Retailer 9
-
£1,958 GBP
View
Price last confirmed 30 days ago
Retailer 10
-
£1,958 GBP
View
Price last confirmed 31 days ago
A
Retailer 11
-
£2,060 GBP
View
A
Retailer 12
-
£2,063 GBP
View
Retailer 13
-
£2,259 GBP
View
Price last confirmed 39 days ago
B+
Retailer 14
-
£2,282 GBP
View
B
Retailer 15
-
£3,421 GBP
View
Most Expensive
NZ Jewellers
fce1f45b-5368-408b-b8fb-25a1cd622ae3 · Sep 29
£4,093 GBP
$5,479 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from £1,459 GBPSave up to £1,962 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
1.00ct Marquise
£1,459 GBP