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1.11ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555544751

Certificate GIA 1555544751

Diamond specifications and retailer prices

From €1,981 EUR
$2,213 USD
As of October 30, 2026
Save €2,346 EUR (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,327 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.11ct natural round diamond

This 1.11ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555544751. Listed at 14 retailers as of October 30, 2026, with prices from €1,981 to €4,327, a €2,346 spread on the same certified stone. MOH London lists it at €4,327. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1555544751
Dimensions6.57 × 4.13 × 4.13 mm
L/W Ratio1.59
Culet sizeNone
Top View
6.57 mm4.13 mm1.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555544751
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: Oct 30
Current: €4,327 EUR|Low: €1,656 EUR|High: €4,349 EUR|Avg: €2,501 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 5€1,656 EUR
Retailer 15€1,981 EUR
Retailer 12€2,040 EUR
Retailer 7€2,159 EUR
Retailer 2€2,376 EUR
Retailer 6€2,471 EUR
Retailer 4€2,488 EUR
Retailer 3€2,507 EUR
Retailer 13€2,537 EUR
Retailer 14€2,587 EUR
Retailer 16€2,587 EUR
Retailer 11€2,649 EUR
Retailer 17€2,676 EUR
Retailer 10€2,913 EUR
Retailer 9€3,024 EUR
Retailer 8€3,244 EUR
MOH London€4,327 EUR

18 data points across 17 retailers

14 retailers€1,981 EUR to €4,327 EUR

A
Cheapest Retailer
-
€1,981 EUR
$2,213 USD
A
Retailer 2
-
€1,996 EUR
$2,230 USD
View
A
Retailer 3
-
€2,040 EUR
$2,279 USD
View
A
Retailer 4
-
€2,100 EUR
A$3,609 AUD
View
A
Retailer 5
-
€2,376 EUR
£2,090 GBP
View
B+
Retailer 6
-
€2,380 EUR
$2,659 USD
View
B+
Retailer 7
-
€2,537 EUR
$2,834 USD
View
B+
Retailer 8
-
€2,587 EUR
$2,890 USD
View
B+
Retailer 9
-
€2,587 EUR
$2,890 USD
View
B+
Retailer 10
-
€2,649 EUR
£2,330 GBP
View
B+
Retailer 11
-
€2,676 EUR
$2,990 USD
View
B+
Retailer 12
-
€2,913 EUR
View
Retailer 13
-
€3,244 EUR
$3,625 USD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
1D3C78D68 · Nov 1
€4,327 EUR
£3,806 GBP
View
13 more retailers have this diamond
Prices start from €1,981 EURSave up to €2,346 EUR

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 Round
€1,981 EUR