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Marquise|Natural|GIA

1.00ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 5232913304

Certificate GIA 5232913304

Diamond specifications and retailer prices

From £2,266 GBP
As of November 4, 2026
Save £2,653 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,919 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5232913304. Listed at 17 retailers as of November 4, 2026, with prices from £2,266 to £4,919, a £2,653 spread on the same certified stone. NZ Jewellers lists it at £4,919. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5232913304
Dimensions9.96 × 5.39 × 3.39 mm
L/W Ratio1.85
Top View
9.96 mm5.39 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5232913304
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.0%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £4,919 GBP|Low: £2,178 GBP|High: £5,199 GBP|Avg: £3,018 GBP|-5.4%
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
November 5, 2026
Retailer 7£2,266 GBP
Retailer 4£2,314 GBP
Retailer 6£2,358 GBP
Retailer 10£2,361 GBP
Retailer 9£2,453 GBP
Retailer 11£2,558 GBP
Retailer 5£2,732 GBP
Retailer 2£2,737 GBP
Retailer 12£2,765 GBP
Retailer 14£2,809 GBP
Retailer 13£2,927 GBP
Retailer 16£2,927 GBP
Retailer 15£2,970 GBP
Retailer 8£3,035 GBP
Retailer 3£4,856 GBP
NZ Jewellers£4,919 GBP

38 data points across 16 retailers

17 retailers£2,266 GBP to £4,919 GBP

B+
Cheapest Retailer
-
£2,266 GBP
B+
Retailer 2
-
£2,314 GBP
View
B+
Retailer 3
-
£2,358 GBP
View
B+
Retailer 4
-
£2,361 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,453 GBP
View
B
Retailer 6
-
£2,558 GBP
View
B+
Retailer 7
-
£2,732 GBP
View
B+
Retailer 8
-
£2,737 GBP
View
B+
Retailer 9
-
£2,765 GBP
View
B
Retailer 10
-
£2,809 GBP
View
B
Retailer 11
-
£2,927 GBP
View
B
Retailer 12
-
£2,927 GBP
View
B+
Retailer 13
-
£2,970 GBP
View
B
Retailer 14
-
£3,035 GBP
View
B
Retailer 15
-
£3,106 GBP
View
B
Retailer 16
-
£4,856 GBP
View
Most Expensive
B
NZ Jewellers
27454d27-a90a-4ed3-972b-f19ba16bace8 · Nov 5
£4,919 GBP
$6,621 USD
View
16 more retailers have this diamond
Prices start from £2,266 GBPSave up to £2,653 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+
1.00ct Marquise
£2,266 GBP