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Marquise|Natural|GIA

1.22ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1569358144

Certificate GIA 1569358144

Diamond specifications and retailer prices

From £2,897 GBP
As of November 5, 2026
Save £3,249 GBP (53%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,147 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.22ct natural marquise diamond

This 1.22ct natural marquise sits in the classic 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 1569358144. Listed at 11 retailers as of November 4, 2026, with prices from £2,897 to £6,147, a £3,249 spread on the same certified stone. MOH London lists it at £6,147. 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

1.22
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1569358144
Dimensions11.80 × 5.32 × 3.34 mm
L/W Ratio2.22
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud
Top View
11.80 mm5.32 mm1.22 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1569358144
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.8%

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 5
Current: £6,147 GBP|Low: £2,897 GBP|High: £6,444 GBP|Avg: £4,096 GBP|-4.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5£2,897 GBP
Retailer 4£3,525 GBP
Retailer 9£3,572 GBP
Retailer 8£3,646 GBP
Retailer 2£3,802 GBP
Retailer 7£3,870 GBP
Retailer 6£3,984 GBP
Retailer 10£4,514 GBP
Retailer 3£4,721 GBP
MOH London£6,147 GBP

28 data points across 10 retailers

11 retailers£2,897 GBP to £6,147 GBP

B+
Cheapest Retailer
-
£2,897 GBP
B+
Retailer 2
-
£3,525 GBP
View
B+
Retailer 3
-
£3,572 GBP
View
Final sale: no returns
B
Retailer 4
-
£3,646 GBP
View
B
Retailer 5
-
£3,802 GBP
View
B
Retailer 6
-
£3,870 GBP
View
B
Retailer 7
-
£3,984 GBP
View
Retailer 8
-
£3,998 GBP
View
Price last confirmed 22 days ago
B
Retailer 9
-
£4,514 GBP
View
B
Retailer 10
-
£4,721 GBP
View
Most Expensive
B
MOH London
C0F282DD9 · Nov 4
£6,147 GBP
View
10 more retailers have this diamond
Prices start from £2,897 GBPSave up to £3,249 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+
1.22ct Marquise
£2,897 GBP