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Marquise|Natural|GIA

0.91ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 6561661596

Certificate GIA 6561661596

Diamond specifications and retailer prices

From £1,269 GBP
HK$13,300 HKD
As of November 1, 2026
Save £2,276 GBP (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,545 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6561661596. Listed at 12 retailers as of October 30, 2026, with prices from £1,269 to £3,545, a £2,276 spread on the same certified stone. NZ Jewellers lists it at £3,545. 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

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561661596
Dimensions9.75 × 5.21 × 2.91 mm
L/W Ratio1.87
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
9.75 mm5.21 mm0.91 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561661596
Side View
Table 58.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 55.9%

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: £3,545 GBP|Low: £1,259 GBP|High: £3,545 GBP|Avg: £1,990 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7£1,269 GBP
Retailer 2£1,280 GBP
Retailer 3£1,355 GBP
Retailer 6£1,647 GBP
Retailer 11£1,696 GBP
Retailer 9£1,699 GBP
Retailer 10£1,774 GBP
Retailer 8£1,957 GBP
Retailer 5£2,971 GBP
Retailer 4£3,263 GBP
NZ Jewellers£3,545 GBP

6 data points across 11 retailers

12 retailers£1,269 GBP to £3,545 GBP

B+
Cheapest Retailer
-
£1,269 GBP
HK$13,300 HKD
B+
Retailer 2
-
£1,280 GBP
₹163,566 INR
View
B+
Retailer 3
-
£1,355 GBP
$1,818 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,455 GBP
A$3,004 AUD
View
B
Retailer 5
-
£1,647 GBP
$2,210 USD
View
B
Retailer 6
-
£1,696 GBP
$2,276 USD
View
B
Retailer 7
-
£1,699 GBP
$2,280 USD
View
B
Retailer 8
-
£1,774 GBP
$2,381 USD
View
B
Retailer 9
-
£1,957 GBP
$2,626 USD
View
C
Retailer 10
-
£2,971 GBP
View
C
Retailer 11
-
£3,263 GBP
View
Most Expensive
C
NZ Jewellers
707d09ec-ff19-47fd-bb21-14f9ac94551e · Oct 30
£3,545 GBP
$4,757 USD
View
11 more retailers have this diamond
Prices start from £1,269 GBPSave up to £2,276 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+
0.91ct Marquise
£1,269 GBP