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Marquise|Natural|GIA

1.00ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 5563638917

Certificate GIA 5563638917

Diamond specifications and retailer prices

From £1,969 GBP
As of November 6, 2026
Save £2,623 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,592 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563638917. Listed at 20 retailers as of November 5, 2026, with prices from £1,969 to £4,592, a £2,623 spread on the same certified stone. NZ Jewellers lists it at £4,592. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563638917
Dimensions9.64 × 5.05 × 3.34 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cavity, Cloud, Indented Natural, Natural
Top View
9.64 mm5.05 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563638917
Side View
Table 57.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 66.0%

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: £4,592 GBP|Low: £1,951 GBP|High: £4,592 GBP|Avg: £2,780 GBP
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
Retailer 18
Retailer 19
November 6, 2026
Retailer 17£1,969 GBP
Retailer 2£2,025 GBP
Retailer 10£2,340 GBP
Retailer 11£2,383 GBP
Retailer 5£2,421 GBP
Retailer 6£2,433 GBP
Retailer 18£2,536 GBP
Retailer 12£2,557 GBP
Retailer 3£2,636 GBP
Retailer 9£2,636 GBP
Retailer 13£2,711 GBP
Retailer 7£2,737 GBP
Retailer 4£2,737 GBP
Retailer 8£2,883 GBP
Retailer 19£3,041 GBP
Retailer 16£3,072 GBP
Retailer 14£3,217 GBP
Retailer 15£4,395 GBP
NZ Jewellers£4,592 GBP

19 data points across 19 retailers

20 retailers£1,969 GBP to £4,592 GBP

A
Cheapest Retailer
-
£1,969 GBP
A
Retailer 2
-
£2,025 GBP
View
A
Retailer 3
-
£2,265 GBP
View
A
Retailer 4
-
£2,340 GBP
View
A
Retailer 5
-
£2,383 GBP
View
A
Retailer 6
-
£2,421 GBP
View
A
Retailer 7
-
£2,433 GBP
View
Final sale: no returns
A
Retailer 8
-
£2,536 GBP
View
A
Retailer 9
-
£2,557 GBP
View
Retailer 10
-
£2,636 GBP
View
Price last confirmed 9 days ago
A
Retailer 11
-
£2,636 GBP
View
B+
Retailer 12
-
£2,711 GBP
View
Retailer 13
-
£2,737 GBP
View
Price last confirmed 12 days ago
B+
Retailer 14
-
£2,737 GBP
View
B+
Retailer 15
-
£2,883 GBP
View
B+
Retailer 16
-
£3,041 GBP
View
B+
Retailer 17
-
£3,072 GBP
View
B+
Retailer 18
-
£3,217 GBP
View
B
Retailer 19
-
£4,395 GBP
View
Most Expensive
B
NZ Jewellers
e21db7ec-9640-4f1b-bb53-5656d8f33397 · Nov 5
£4,592 GBP
$6,147 USD
View
19 more retailers have this diamond
Prices start from £1,969 GBPSave up to £2,623 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
£1,969 GBP