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Marquise|Natural|GIA

1.00ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 2566005336

Certificate GIA 2566005336

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)
25 retailers carry this diamond
Most expensive: £4,755 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 2566005336. Listed at 25 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 2566005336
Dimensions10.01 × 5.27 × 3.28 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Needle
Top View
10.01 mm5.27 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566005336
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.3%

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 4
Current: £4,755 GBP|Low: £2,037 GBP|High: £4,755 GBP|Avg: £2,962 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
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
November 6, 2026
Retailer 15£2,037 GBP
Retailer 4£2,152 GBP
Retailer 25£2,211 GBP
Retailer 23£2,221 GBP
Retailer 20£2,260 GBP
Retailer 22£2,268 GBP
Retailer 24£2,363 GBP
Retailer 13£2,412 GBP
Retailer 9£2,447 GBP
Retailer 14£2,519 GBP
Retailer 3£2,677 GBP
Retailer 10£2,730 GBP
Retailer 12£2,730 GBP
Retailer 7£2,835 GBP
Retailer 21£2,835 GBP
Retailer 16£2,838 GBP
Retailer 17£2,876 GBP
Retailer 18£2,937 GBP
Retailer 11£3,150 GBP
Retailer 2£3,157 GBP
Retailer 19£3,269 GBP
Retailer 6£3,313 GBP
Retailer 8£4,250 GBP
Retailer 5£4,589 GBP
NZ Jewellers£4,755 GBP

24 data points across 25 retailers

25 retailers£2,211 GBP to £3,269 GBP

Retailer 1
-
£2,037 GBP
Price last confirmed 17 days ago
Retailer 2
-
£2,152 GBP
View
Price last confirmed 18 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
-
£2,412 GBP
View
Retailer 10
-
£2,447 GBP
View
Price last confirmed 22 days ago
A
Retailer 11
-
£2,539 GBP
View
Retailer 12
-
£2,730 GBP
View
Price last confirmed 21 days ago
Retailer 13
-
£2,730 GBP
View
Price last confirmed 19 days ago
Retailer 14
-
£2,835 GBP
View
Price last confirmed 21 days ago
B+
Retailer 15
-
£2,835 GBP
View
Retailer 16
-
£2,838 GBP
View
Price last confirmed 19 days ago
Retailer 17
-
£2,876 GBP
View
Price last confirmed 19 days ago
Retailer 18
-
£2,937 GBP
View
Price last confirmed 29 days ago
Retailer 19
-
£3,150 GBP
View
Price last confirmed 18 days ago
B+
Retailer 20
-
£3,157 GBP
View
B
Retailer 21
-
£3,269 GBP
View
Retailer 22
-
£3,313 GBP
View
Price last confirmed 20 days ago
Retailer 23
-
£4,250 GBP
View
Price last confirmed 18 days ago
Retailer 24
-
£4,589 GBP
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
1f940343-4871-4ff1-90e8-8d5aab25d685 · Oct 17
£4,755 GBP
$6,365 USD
View
Price last confirmed 19 days ago
24 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