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Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 5553716466

Certificate GIA 5553716466

Diamond specifications and retailer prices

From £1,746 GBP
HK$18,300 HKD
As of November 1, 2026
Save £2,295 GBP (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,079 GBP at NZ Jewellers · As of September 20, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5553716466. Listed at 21 retailers as of October 30, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5553716466
Dimensions9.21 × 5.11 × 3.47 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Top View
9.21 mm5.11 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5553716466
Side View
Table 57.0%CrownGirdle: VTN-ETKPavilionCulet: NoneDepth 67.8%

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 1
Current: £1,760 GBP|Low: £1,746 GBP|High: £3,926 GBP|Avg: £2,368 GBP|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7£1,746 GBP
Retailer 1£1,760 GBP
Retailer 9£1,916 GBP
Retailer 11£1,985 GBP
Retailer 3£2,097 GBP
Retailer 2£2,140 GBP
Retailer 6£2,337 GBP
Retailer 10£2,408 GBP
Retailer 5£2,426 GBP
Retailer 4£2,714 GBP
Retailer 8£3,899 GBP

31 data points across 11 retailers

21 retailers£1,746 GBP to £4,040 GBP

A
Cheapest Retailer
-
£1,746 GBP
HK$18,300 HKD
A
Retailer 2
-
£1,760 GBP
₹224,891 INR
View
Retailer 3
-
£1,916 GBP
€2,449 EUR
View
Price last confirmed 7 days ago
A
Retailer 4
-
£1,985 GBP
SGD 3,599 SGD
View
B+
Retailer 5
-
£2,042 GBP
$2,740 USD
View
B+
Retailer 6
-
£2,097 GBP
$2,814 USD
View
B+
Retailer 7
-
£2,140 GBP
$2,872 USD
View
Final sale: no returns
B+
Retailer 8
-
£2,266 GBP
A$4,678 AUD
View
B+
Retailer 9
-
£2,319 GBP
$3,112 USD
View
B+
Retailer 10
-
£2,337 GBP
$3,136 USD
View
Retailer 11
-
£2,341 GBP
$3,142 USD
View
Price last confirmed 41 days ago
B+
Retailer 12
-
£2,408 GBP
$3,232 USD
View
B+
Retailer 13
-
£2,426 GBP
View
B+
Retailer 14
-
£2,429 GBP
SGD 4,404 SGD
View
B
Retailer 15
-
£2,676 GBP
$3,591 USD
View
Retailer 16
-
£2,701 GBP
$3,625 USD
View
Price last confirmed 40 days ago
B
Retailer 17
-
£2,714 GBP
€3,469 EUR
View
B
Retailer 18
-
£3,377 GBP
$4,532 USD
View
B
Retailer 19
-
£3,899 GBP
View
B
Retailer 20
-
£4,040 GBP
$5,422 USD
View
Most Expensive
NZ Jewellers
71e6f5ef-b1f1-44a9-8617-315f3c6844fe · Sep 20
£4,079 GBP
$5,474 USD
View
Price last confirmed 42 days ago
20 more retailers have this diamond
Prices start from £1,746 GBPSave up to £2,295 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
£1,746 GBP