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Marquise|Natural|GIA

1.11ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1545412434

Certificate GIA 1545412434

Diamond specifications and retailer prices

From £1,221 GBP
As of November 4, 2026
Save £506 GBP (29%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,728 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.11ct natural marquise diamond

This 1.11ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545412434. Listed at 7 retailers as of November 4, 2026, with prices from £1,221 to £1,728, a £506 spread on the same certified stone. GemTrove lists it at £1,728. 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

1.11
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1545412434
Dimensions10.09 × 5.46 × 3.46 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Natural
Top View
10.09 mm5.46 mm1.11 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1545412434
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,728 GBP|Low: £1,127 GBP|High: £1,728 GBP|Avg: £1,474 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4£1,221 GBP
Retailer 3£1,338 GBP
Retailer 7£1,361 GBP
Retailer 2£1,458 GBP
Retailer 6£1,467 GBP
Retailer 5£1,520 GBP
GemTrove£1,728 GBP

41 data points across 7 retailers

7 retailers£1,221 GBP to £1,728 GBP

A
Cheapest Retailer
-
£1,221 GBP
Final sale: no returns
A
Retailer 2
-
£1,338 GBP
View
A
Retailer 3
-
£1,361 GBP
View
A
Retailer 4
-
£1,458 GBP
View
B+
Retailer 5
-
£1,467 GBP
View
B+
Retailer 6
-
£1,520 GBP
View
Most Expensive
B+
GemTrove
GT-N-01273944-98 · Nov 6
£1,728 GBP
A$3,578 AUD
View
6 more retailers have this diamond
Prices start from £1,221 GBPSave up to £506 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
1.11ct Marquise
£1,221 GBP