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Round|Natural|GIA

1.11ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2507294381

Certificate GIA 2507294381

Diamond specifications and retailer prices

From £2,232 GBP
$2,990 USD
As of November 1, 2026
Save £2,675 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,906 GBP at NZ Jewellers · As of October 30, 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 2507294381. Listed at 18 retailers as of October 30, 2026, with prices from £2,232 to £4,906, a £2,675 spread on the same certified stone. NZ Jewellers lists it at £4,906. 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°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2507294381
Dimensions6.63 × 6.60 × 4.11 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Top View
6.63 mm6.60 mm1.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507294381
Side View
Table 56.0%Crown 35°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.1%

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 1
Current: £4,906 GBP|Low: £1,962 GBP|High: £4,906 GBP|Avg: £3,238 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6£2,232 GBP
Retailer 7£2,355 GBP
Retailer 10£2,459 GBP
Retailer 9£2,649 GBP
Retailer 4£2,925 GBP
Retailer 8£3,016 GBP
Retailer 2£3,283 GBP
Retailer 5£3,461 GBP
Retailer 3£4,710 GBP
NZ Jewellers£4,906 GBP

41 data points across 10 retailers

18 retailers£2,232 GBP to £4,906 GBP

B+
Cheapest Retailer
-
£2,232 GBP
$2,990 USD
B+
Retailer 2
-
£2,265 GBP
$3,035 USD
View
B+
Retailer 3
-
£2,355 GBP
$3,155 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,459 GBP
$3,295 USD
View
B+
Retailer 5
-
£2,551 GBP
$3,418 USD
View
B+
Retailer 6
-
£2,551 GBP
$3,418 USD
View
B
Retailer 7
-
£2,649 GBP
$3,550 USD
View
B
Retailer 8
-
£2,888 GBP
$3,870 USD
View
B
Retailer 9
-
£2,888 GBP
$3,870 USD
View
B+
Retailer 10
-
£2,925 GBP
View
B
Retailer 11
-
£2,944 GBP
$3,944 USD
View
B
Retailer 12
-
£2,985 GBP
$4,000 USD
View
Retailer 13
-
£3,016 GBP
A$6,218 AUD
View
Price last confirmed 24 days ago
Retailer 14
-
£3,188 GBP
$4,272 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
£3,283 GBP
€4,189 EUR
View
B
Retailer 16
-
£3,461 GBP
ZAR 74,927 ZAR
View
B
Retailer 17
-
£4,710 GBP
View
Most Expensive
B
NZ Jewellers
80fd30a1-3797-46b8-bdf6-ea6d983cbdec · Oct 30
£4,906 GBP
$6,574 USD
View
17 more retailers have this diamond
Prices start from £2,232 GBPSave up to £2,675 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
£2,232 GBP