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Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 2568579768

Certificate GIA 2568579768

Diamond specifications and retailer prices

From £1,501 GBP
As of November 6, 2026
Save £2,708 GBP (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,209 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2568579768. Listed at 17 retailers as of November 5, 2026, with prices from £1,501 to £4,209, a £2,708 spread on the same certified stone. NZ Jewellers lists it at £4,209. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2568579768
Dimensions10.86 × 4.86 × 3.17 mm
L/W Ratio2.23
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Needle
Top View
10.86 mm4.86 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2568579768
Side View
Table 55.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 65.2%

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: £4,209 GBP|Low: £1,501 GBP|High: £4,341 GBP|Avg: £2,249 GBP|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 16£1,501 GBP
Retailer 13£1,804 GBP
Retailer 3£1,812 GBP
Retailer 8£1,812 GBP
Retailer 14£1,857 GBP
Retailer 9£1,918 GBP
Retailer 2£1,980 GBP
Retailer 12£2,013 GBP
Retailer 5£2,077 GBP
Retailer 10£2,084 GBP
Retailer 15£2,091 GBP
Retailer 11£2,118 GBP
Retailer 6£2,240 GBP
Retailer 17£2,323 GBP
Retailer 4£2,421 GBP
Retailer 7£3,657 GBP
NZ Jewellers£4,209 GBP

16 data points across 17 retailers

17 retailers£1,501 GBP to £4,209 GBP

A
Cheapest Retailer
-
£1,501 GBP
B+
Retailer 2
-
£1,804 GBP
View
B+
Retailer 3
-
£1,812 GBP
View
B+
Retailer 4
-
£1,812 GBP
View
B+
Retailer 5
-
£1,857 GBP
View
Final sale: no returns
B+
Retailer 6
-
£1,918 GBP
View
B+
Retailer 7
-
£1,980 GBP
View
B+
Retailer 8
-
£2,013 GBP
View
Retailer 9
-
£2,077 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£2,084 GBP
View
B+
Retailer 11
-
£2,091 GBP
View
B+
Retailer 12
-
£2,118 GBP
View
B
Retailer 13
-
£2,240 GBP
View
B
Retailer 14
-
£2,323 GBP
View
B
Retailer 15
-
£2,421 GBP
View
Retailer 16
-
£3,657 GBP
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
2fc13b7f-c714-4af4-b2f3-3e639a25038c · Nov 5
£4,209 GBP
$5,634 USD
View
16 more retailers have this diamond
Prices start from £1,501 GBPSave up to £2,708 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
£1,501 GBP