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Marquise|Natural|IGI

1.01ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 773616556

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 773616556

Diamond specifications and retailer prices

From £1,356 GBP
As of November 1, 2026
Save £1,801 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,157 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 773616556. Listed at 16 retailers as of November 1, 2026, with prices from £1,356 to £3,157, a £1,801 spread on the same certified stone. NZ Jewellers lists it at £3,157. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.3°
Pavilion angle39.3°
OriginNatural
Grading LabIGI
CertificateIGI 773616556
Dimensions10.46 × 5.44 × 3.12 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Top View
10.46 mm5.44 mm1.01 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 773616556
Side View
Table 65.0%Crown 32.3°Girdle: THN-THKPavilion 39.3°Culet: NoneDepth 57.4%

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: £1,961 GBP|Low: £1,315 GBP|High: £2,677 GBP|Avg: £1,764 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4£1,356 GBP
Retailer 7£1,393 GBP
Retailer 9£1,490 GBP
Retailer 8£1,579 GBP
Retailer 2£1,658 GBP
Retailer 6£1,768 GBP
Retailer 3£1,842 GBP
Retailer 1£1,961 GBP
Retailer 5£2,649 GBP

43 data points across 9 retailers

16 retailers£1,356 GBP to £3,157 GBP

B+
Cheapest Retailer
-
£1,356 GBP
B+
Retailer 2
-
£1,364 GBP
View
B+
Retailer 3
-
£1,393 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,448 GBP
View
Retailer 5
-
£1,510 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,510 GBP
View
B+
Retailer 7
-
£1,535 GBP
View
B+
Retailer 8
-
£1,579 GBP
View
B+
Retailer 9
-
£1,613 GBP
View
B+
Retailer 10
-
£1,620 GBP
View
B+
Retailer 11
-
£1,658 GBP
View
B
Retailer 12
-
£1,742 GBP
View
B
Retailer 13
-
£1,842 GBP
View
B
Retailer 14
-
£1,961 GBP
View
Retailer 15
-
£2,649 GBP
View
Price last confirmed 11 days ago
Most Expensive
C
NZ Jewellers
1e4b5ac2-b470-48c0-90f3-f8dd3897cc16 · Nov 5
£3,157 GBP
$4,225 USD
View
15 more retailers have this diamond
Prices start from £1,356 GBPSave up to £1,801 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
£1,356 GBP