Marquise|Natural|GIA

1.01ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 1538748998

Certificate GIA 1538748998

Diamond specifications and retailer prices

From £1,784 GBP
As of November 1, 2026
Save £2,211 GBP (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,289 GBP at NZ Jewellers · As of September 20, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1538748998. Listed at 22 retailers as of November 1, 2026, with a 124% 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.57°
Pavilion angle34.68°
OriginNatural
Grading LabGIA
CertificateGIA 1538748998
Dimensions11.05 × 5.18 × 2.96 mm
L/W Ratio2.13
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural
Top View
11.05 mm5.18 mm1.01 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538748998
Side View
Table 55.0%Crown 36.57°Girdle: THK-VTKPavilion 34.68°Culet: NoneDepth 57.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £4,162 GBP|Low: £1,766 GBP|High: £4,289 GBP|Avg: £2,619 GBP|-3.0%
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
November 4, 2026
Retailer 14£1,784 GBP
Retailer 17£2,040 GBP
Retailer 7£2,139 GBP
Retailer 10£2,140 GBP
Retailer 6£2,179 GBP
Retailer 15£2,181 GBP
Retailer 16£2,205 GBP
Retailer 3£2,389 GBP
Retailer 2£2,472 GBP
Retailer 8£2,479 GBP
Retailer 4£2,496 GBP
Retailer 5£2,561 GBP
Retailer 9£2,757 GBP
Retailer 11£2,785 GBP
Retailer 13£2,936 GBP
Retailer 12£3,995 GBP
NZ Jewellers£4,162 GBP

41 data points across 17 retailers

22 retailers£1,784 GBP to £3,995 GBP

B+
Cheapest Retailer
-
£1,784 GBP
Retailer 2
-
£2,040 GBP
View
Price last confirmed 17 days ago
B+
Retailer 3
-
£2,139 GBP
View
B+
Retailer 4
-
£2,140 GBP
View
B+
Retailer 5
-
£2,179 GBP
View
B+
Retailer 6
-
£2,181 GBP
View
B
Retailer 7
-
£2,205 GBP
View
Final sale: no returns
Retailer 8
-
£2,389 GBP
View
Price last confirmed 15 days ago
Retailer 9
-
£2,389 GBP
View
Price last confirmed 19 days ago
Retailer 10
-
£2,462 GBP
View
Price last confirmed 45 days ago
B
Retailer 11
-
£2,472 GBP
View
Retailer 12
-
£2,479 GBP
View
Price last confirmed 8 days ago
Retailer 13
-
£2,481 GBP
View
Price last confirmed 19 days ago
B
Retailer 14
-
£2,496 GBP
View
Retailer 15
-
£2,561 GBP
View
Price last confirmed 31 days ago
Retailer 16
-
£2,757 GBP
View
Price last confirmed 14 days ago
B
Retailer 17
-
£2,785 GBP
View
Retailer 18
-
£2,840 GBP
View
Price last confirmed 43 days ago
B
Retailer 19
-
£2,936 GBP
View
B
Retailer 20
-
£3,995 GBP
View
Retailer 21
-
£4,162 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
a137714c-fc01-4d23-bd19-0e71a01122f2 · Sep 20
£4,289 GBP
$5,752 USD
View
Price last confirmed 44 days ago
21 more retailers have this diamond
Prices start from £1,784 GBPSave up to £2,211 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
£1,784 GBP