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Marquise|Natural|GIA

1.01ct M SI1 Marquise Natural Diamond

VG • M/SI1 • GIA 5211813740

Certificate GIA 5211813740

Diamond specifications and retailer prices

From £1,412 GBP
As of November 1, 2026
Save £733 GBP (34%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,673 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5211813740. Listed at 12 retailers as of November 1, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
M
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5211813740
Dimensions10.48 × 4.99 × 3.28 mm
L/W Ratio2.10
Top View
10.48 mm4.99 mm1.01 ctM / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5211813740
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,045 GBP|Low: £1,166 GBP|High: £2,159 GBP|Avg: £1,654 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4£1,166 GBP
Retailer 6£1,412 GBP
Retailer 8£1,417 GBP
Retailer 12£1,438 GBP
Retailer 9£1,591 GBP
Retailer 3£1,605 GBP
Retailer 7£1,665 GBP
Retailer 11£1,722 GBP
Retailer 2£1,835 GBP
Retailer 10£1,837 GBP
Retailer 1£2,045 GBP
Retailer 5£2,144 GBP

25 data points across 12 retailers

12 retailers£1,412 GBP to £2,144 GBP

B
Cheapest Retailer
-
£1,412 GBP
B
Retailer 2
-
£1,417 GBP
View
B
Retailer 3
-
£1,438 GBP
View
Retailer 4
-
£1,591 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£1,591 GBP
View
B
Retailer 6
-
£1,605 GBP
View
B
Retailer 7
-
£1,665 GBP
View
B
Retailer 8
-
£1,722 GBP
View
B
Retailer 9
-
£1,837 GBP
View
B
Retailer 10
-
£2,045 GBP
View
B
Retailer 11
-
£2,144 GBP
View
Most Expensive
NZ Jewellers
6b0ff8e7-ad6d-4676-9cc3-b14f7fe506ea · Nov 5
£3,673 GBP
$4,943 USD
View
Price under review
11 more retailers have this diamond
Prices start from £1,412 GBPSave up to £733 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
1.01ct Marquise
£1,412 GBP