Round|Natural|IGI

1.11ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 773617616

Shape and cutting style on the report: Round brilliant

Certificate IGI 773617616

Diamond specifications and retailer prices

From £1,298 GBP
₹165,939 INR
As of November 2, 2026
Save £2,231 GBP (63%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,529 GBP at NZ Jewellers · As of September 25, 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 IGI 773617616. Listed at 19 retailers as of November 2, 2026, with a 172% 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 angle36.6°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 773617616
Dimensions6.54 × 6.58 × 4.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.54 mm6.58 mm1.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 773617616
Side View
Table 57.0%Crown 36.6°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.2%

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: Nov 2
Current: £3,529 GBP|Low: £1,296 GBP|High: £3,529 GBP|Avg: £2,039 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2£1,298 GBP
Retailer 9£1,513 GBP
Retailer 11£1,557 GBP
Retailer 4£1,688 GBP
Retailer 12£1,766 GBP
Retailer 6£1,874 GBP
Retailer 10£1,935 GBP
Retailer 3£1,948 GBP
Retailer 5£2,012 GBP
Retailer 8£2,075 GBP
Retailer 7£2,957 GBP
NZ Jewellers£3,529 GBP

37 data points across 12 retailers

19 retailers£1,298 GBP to £3,529 GBP

A
Cheapest Retailer
-
£1,298 GBP
₹165,939 INR
A
Retailer 2
-
£1,513 GBP
$2,030 USD
View
A
Retailer 3
-
£1,525 GBP
$2,046 USD
View
A
Retailer 4
-
£1,557 GBP
$2,090 USD
View
Final sale: no returns
A
Retailer 5
-
£1,688 GBP
$2,265 USD
View
Retailer 6
-
£1,688 GBP
$2,265 USD
View
Price last confirmed 38 days ago
A
Retailer 7
-
£1,688 GBP
$2,265 USD
View
A
Retailer 8
-
£1,692 GBP
$2,270 USD
View
A
Retailer 9
-
£1,766 GBP
$2,370 USD
View
A
Retailer 10
-
£1,792 GBP
$2,404 USD
View
A
Retailer 11
-
£1,874 GBP
View
B+
Retailer 12
-
£1,935 GBP
View
B+
Retailer 13
-
£1,948 GBP
$2,614 USD
View
Retailer 14
-
£1,948 GBP
$2,614 USD
View
Price last confirmed 41 days ago
B+
Retailer 15
-
£2,012 GBP
€2,572 EUR
View
B+
Retailer 16
-
£2,075 GBP
ZAR 44,980 ZAR
View
B
Retailer 17
-
£2,957 GBP
View
B
Retailer 18
-
£3,529 GBP
$4,736 USD
View
Most Expensive
NZ Jewellers
32bbb91d-4233-4904-aa9a-5d63fd79cc26 · Sep 25
£3,529 GBP
$4,736 USD
View
Price last confirmed 38 days ago
18 more retailers have this diamond
Prices start from £1,298 GBPSave up to £2,231 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 Round
£1,298 GBP