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Marquise|Natural|GIA

1.00ct L SI1 Marquise Natural Diamond

EX • L/SI1 • GIA 3545998041

Certificate GIA 3545998041

Diamond specifications and retailer prices

From £834 GBP
As of November 6, 2026
Save £1,903 GBP (70%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,736 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545998041. Listed at 15 retailers as of November 5, 2026, with prices from £834 to £2,736, a £1,903 spread on the same certified stone. NZ Jewellers lists it at £2,736. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545998041
Dimensions11.26 × 4.94 × 3.10 mm
L/W Ratio2.28
Top View
11.26 mm4.94 mm1.00 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545998041
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,736 GBP|Low: £834 GBP|High: £2,736 GBP|Avg: £1,318 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2£834 GBP
Retailer 4£1,088 GBP
Retailer 9£1,122 GBP
Retailer 11£1,122 GBP
Retailer 3£1,169 GBP
Retailer 10£1,174 GBP
Retailer 5£1,239 GBP
Retailer 8£1,294 GBP
Retailer 6£1,369 GBP
Retailer 7£1,525 GBP
NZ Jewellers£2,736 GBP

27 data points across 11 retailers

15 retailers£834 GBP to £2,736 GBP

A
Cheapest Retailer
-
£834 GBP
B+
Retailer 2
-
£1,039 GBP
View
B+
Retailer 3
-
£1,088 GBP
View
B+
Retailer 4
-
£1,122 GBP
View
Retailer 5
-
£1,122 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,135 GBP
View
B+
Retailer 7
-
£1,169 GBP
View
B+
Retailer 8
-
£1,174 GBP
View
B+
Retailer 9
-
£1,189 GBP
View
B+
Retailer 10
-
£1,223 GBP
View
B+
Retailer 11
-
£1,239 GBP
View
B+
Retailer 12
-
£1,294 GBP
View
B+
Retailer 13
-
£1,369 GBP
View
B
Retailer 14
-
£1,525 GBP
View
Most Expensive
B
NZ Jewellers
a548e8cf-5980-4444-a724-369018b75ca1 · Nov 5
£2,736 GBP
$3,683 USD
View
14 more retailers have this diamond
Prices start from £834 GBPSave up to £1,903 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
£834 GBP