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Marquise|Natural|GIA

1.00ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 1553552187

Certificate GIA 1553552187

Diamond specifications and retailer prices

From £2,211 GBP
As of November 4, 2026
Save £1,057 GBP (32%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £4,821 GBP at NZ Jewellers · As of October 17, 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 1553552187. Listed at 26 retailers as of November 4, 2026, with a 48% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553552187
Dimensions9.70 × 5.15 × 3.32 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
9.70 mm5.15 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553552187
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.5%

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 4
Current: £4,821 GBP|Low: £2,065 GBP|High: £4,821 GBP|Avg: £2,982 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
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Retailer 26
November 6, 2026
Retailer 15£2,065 GBP
Retailer 4£2,181 GBP
Retailer 25£2,211 GBP
Retailer 23£2,221 GBP
Retailer 22£2,268 GBP
Retailer 24£2,363 GBP
Retailer 13£2,445 GBP
Retailer 9£2,480 GBP
Retailer 14£2,554 GBP
Retailer 17£2,631 GBP
Retailer 26£2,652 GBP
Retailer 3£2,714 GBP
Retailer 10£2,767 GBP
Retailer 12£2,767 GBP
Retailer 21£2,835 GBP
Retailer 7£2,873 GBP
Retailer 16£2,876 GBP
Retailer 18£2,914 GBP
Retailer 19£2,977 GBP
Retailer 2£3,157 GBP
Retailer 11£3,193 GBP
Retailer 20£3,269 GBP
Retailer 6£3,358 GBP
Retailer 8£4,284 GBP
Retailer 5£4,652 GBP
NZ Jewellers£4,821 GBP

24 data points across 26 retailers

26 retailers£2,211 GBP to £3,269 GBP

Retailer 1
-
£2,065 GBP
Price last confirmed 18 days ago
Retailer 2
-
£2,181 GBP
View
Price last confirmed 19 days ago
A
Retailer 3
-
£2,211 GBP
View
A
Retailer 4
-
£2,221 GBP
View
A
Retailer 5
-
£2,260 GBP
View
A
Retailer 6
-
£2,268 GBP
View
A
Retailer 7
-
£2,363 GBP
View
A
Retailer 8
-
£2,396 GBP
View
A
Retailer 9
-
£2,445 GBP
View
Retailer 10
-
£2,480 GBP
View
Price last confirmed 23 days ago
B+
Retailer 11
-
£2,551 GBP
View
Retailer 12
-
£2,631 GBP
View
Price last confirmed 19 days ago
Retailer 13
-
£2,767 GBP
View
Price last confirmed 22 days ago
Retailer 14
-
£2,767 GBP
View
Price last confirmed 20 days ago
B+
Retailer 15
-
£2,835 GBP
View
Retailer 16
-
£2,873 GBP
View
Price last confirmed 22 days ago
Retailer 17
-
£2,876 GBP
View
Price last confirmed 20 days ago
Retailer 18
-
£2,914 GBP
View
Price last confirmed 20 days ago
Retailer 19
-
£2,977 GBP
View
Price last confirmed 30 days ago
B+
Retailer 20
-
£3,157 GBP
View
Retailer 21
-
£3,193 GBP
View
Price last confirmed 19 days ago
B
Retailer 22
-
£3,269 GBP
View
Retailer 23
-
£3,358 GBP
View
Price last confirmed 21 days ago
Retailer 24
-
£4,284 GBP
View
Price last confirmed 19 days ago
Retailer 25
-
£4,652 GBP
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
a586af5d-b12f-4ea6-8c42-b4c7c3226e02 · Oct 17
£4,821 GBP
$6,453 USD
View
Price last confirmed 20 days ago
25 more retailers have this diamond
Prices start from £2,211 GBPSave up to £1,057 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
£2,211 GBP