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Round|Natural|GIA

1.11ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556369090

Certificate GIA 2556369090

Diamond specifications and retailer prices

From £2,058 GBP
$2,762 USD
As of November 2, 2026
Save £1,672 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,663 GBP at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

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 2556369090. Listed at 14 retailers as of November 1, 2026, with a 81% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556369090
Dimensions6.60 × 6.64 × 4.12 mm
L/W Ratio1.01
Star length55%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.60 mm6.64 mm1.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556369090
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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 2
Current: £2,146 GBP|Low: £2,058 GBP|High: £3,791 GBP|Avg: £2,556 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10£2,058 GBP
Retailer 1£2,146 GBP
Retailer 13£2,176 GBP
Retailer 3£2,230 GBP
Retailer 5£2,326 GBP
Retailer 4£2,347 GBP
Retailer 6£2,351 GBP
Retailer 2£2,392 GBP
Retailer 7£2,516 GBP
Retailer 12£2,523 GBP
Retailer 11£2,598 GBP
Retailer 9£2,742 GBP
Retailer 8£3,730 GBP

24 data points across 13 retailers

14 retailers£2,058 GBP to £3,730 GBP

B+
Cheapest Retailer
-
£2,058 GBP
$2,762 USD
Final sale: no returns
B+
Retailer 2
-
£2,146 GBP
View
B+
Retailer 3
-
£2,176 GBP
$2,920 USD
View
Retailer 4
-
£2,230 GBP
$2,993 USD
View
Price last confirmed 25 days ago
Retailer 5
-
£2,347 GBP
$3,150 USD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
£2,351 GBP
View
Retailer 7
-
£2,392 GBP
A$4,937 AUD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
£2,516 GBP
€3,215 EUR
View
B+
Retailer 9
-
£2,523 GBP
$3,386 USD
View
Retailer 10
-
£2,574 GBP
$3,454 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
£2,598 GBP
View
B+
Retailer 12
-
£2,742 GBP
ZAR 59,437 ZAR
View
B
Retailer 13
-
£3,730 GBP
View
Most Expensive
NZ Jewellers
a8988151-7674-4540-8775-672913e9829b · Oct 3
£4,663 GBP
$6,258 USD
View
Price last confirmed 30 days ago
13 more retailers have this diamond
Prices start from £2,058 GBPSave up to £1,672 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+
1.11ct Round
£2,058 GBP