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Marquise|Natural|GIA

0.91ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1558861063

Certificate GIA 1558861063

Diamond specifications and retailer prices

From £1,087 GBP
₹138,884 INR
As of November 2, 2026
Save £2,467 GBP (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,554 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.91ct natural marquise diamond

This 0.91ct natural marquise sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558861063. Listed at 19 retailers as of October 30, 2026, with prices from £1,087 to £3,554, a £2,467 spread on the same certified stone. NZ Jewellers lists it at £3,554. 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

0.91
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558861063
Dimensions9.76 × 5.14 × 2.98 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Etch Channel
Top View
9.76 mm5.14 mm0.91 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558861063
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.0%

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 2
Current: £2,552 GBP|Low: £1,085 GBP|High: £2,580 GBP|Avg: £1,694 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£1,087 GBP
Retailer 8£1,149 GBP
Retailer 6£1,434 GBP
Retailer 9£1,524 GBP
Retailer 4£1,585 GBP
Retailer 7£1,901 GBP
Retailer 3£1,989 GBP
Retailer 5£2,149 GBP
Retailer 1£2,552 GBP

35 data points across 9 retailers

19 retailers£1,087 GBP to £3,554 GBP

A
Cheapest Retailer
-
£1,087 GBP
₹138,884 INR
A
Retailer 2
-
£1,149 GBP
$1,542 USD
View
Final sale: no returns
B+
Retailer 3
-
£1,317 GBP
$1,767 USD
View
B+
Retailer 4
-
£1,434 GBP
$1,924 USD
View
B+
Retailer 5
-
£1,453 GBP
$1,950 USD
View
B+
Retailer 6
-
£1,457 GBP
$1,955 USD
View
B+
Retailer 7
-
£1,457 GBP
$1,955 USD
View
B+
Retailer 8
-
£1,487 GBP
$1,995 USD
View
B+
Retailer 9
-
£1,524 GBP
$2,045 USD
View
B+
Retailer 10
-
£1,560 GBP
$2,093 USD
View
B+
Retailer 11
-
£1,585 GBP
View
B+
Retailer 12
-
£1,681 GBP
$2,256 USD
View
B
Retailer 13
-
£1,729 GBP
$2,321 USD
View
Retailer 14
-
£1,739 GBP
$2,334 USD
View
Price last confirmed 57 days ago
Retailer 15
-
£1,901 GBP
A$3,925 AUD
View
Price last confirmed 27 days ago
B+
Retailer 16
-
£1,989 GBP
€2,542 EUR
View
B
Retailer 17
-
£2,149 GBP
ZAR 46,588 ZAR
View
B
Retailer 18
-
£2,552 GBP
View
Most Expensive
B
NZ Jewellers
fd5e0f42-0375-4144-8ea5-da9b82527c0e · Oct 30
£3,554 GBP
$4,769 USD
View
18 more retailers have this diamond
Prices start from £1,087 GBPSave up to £2,467 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
0.91ct Marquise
£1,087 GBP