CaratHunter
Plans
Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 6565318503

Certificate GIA 6565318503

Diamond specifications and retailer prices

From £2,137 GBP
HK$22,400 HKD
As of November 1, 2026
Save £2,797 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,934 GBP at NZ Jewellers · As of October 30, 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 6565318503. Listed at 20 retailers as of October 30, 2026, with prices from £2,137 to £4,934, a £2,797 spread on the same certified stone. NZ Jewellers lists it at £4,934. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565318503
Dimensions9.99 × 5.17 × 3.29 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Top View
9.99 mm5.17 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565318503
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.6%

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: £2,149 GBP|Low: £2,137 GBP|High: £4,787 GBP|Avg: £2,845 GBP|-1.5%
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 8£2,137 GBP
Retailer 1£2,149 GBP
Retailer 10£2,321 GBP
Retailer 3£2,427 GBP
Retailer 9£2,538 GBP
Retailer 11£2,616 GBP
Retailer 4£2,762 GBP
Retailer 6£2,901 GBP
Retailer 2£2,941 GBP
Retailer 5£3,314 GBP
Retailer 7£4,737 GBP

22 data points across 11 retailers

20 retailers£2,137 GBP to £4,934 GBP

B+
Cheapest Retailer
-
£2,137 GBP
HK$22,400 HKD
A
Retailer 2
-
£2,149 GBP
₹274,635 INR
View
B+
Retailer 3
-
£2,293 GBP
$3,077 USD
View
Retailer 4
-
£2,321 GBP
€2,966 EUR
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£2,427 GBP
SGD 4,402 SGD
View
B+
Retailer 6
-
£2,498 GBP
$3,352 USD
View
B+
Retailer 7
-
£2,538 GBP
$3,406 USD
View
B
Retailer 8
-
£2,614 GBP
$3,508 USD
View
Final sale: no returns
B+
Retailer 9
-
£2,616 GBP
$3,511 USD
View
B
Retailer 10
-
£2,692 GBP
SGD 4,882 SGD
View
B+
Retailer 11
-
£2,762 GBP
View
B
Retailer 12
-
£2,832 GBP
$3,801 USD
View
B
Retailer 13
-
£2,901 GBP
View
B
Retailer 14
-
£2,941 GBP
$3,947 USD
View
B
Retailer 15
-
£3,080 GBP
$4,133 USD
View
B
Retailer 16
-
£3,268 GBP
$4,385 USD
View
B
Retailer 17
-
£3,314 GBP
€4,236 EUR
View
B
Retailer 18
-
£4,131 GBP
$5,544 USD
View
B
Retailer 19
-
£4,737 GBP
View
Most Expensive
C
NZ Jewellers
be3e048e-2fc3-4110-8af7-b73b435ad829 · Oct 30
£4,934 GBP
$6,621 USD
View
19 more retailers have this diamond
Prices start from £2,137 GBPSave up to £2,797 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
£2,137 GBP