Round|Natural|GIA

1.11ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552600052

Certificate GIA 6552600052

Diamond specifications and retailer prices

From £1,122 GBP
SGD 2,032 SGD
As of October 31, 2026
Save £2,306 GBP (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,428 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 6552600052. Listed at 8 retailers as of October 30, 2026, with prices from £1,122 to £3,428, a £2,306 spread on the same certified stone. NZ Jewellers lists it at £3,428. 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
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552600052
Dimensions6.62 × 6.58 × 4.15 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Natural
Top View
6.62 mm6.58 mm1.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552600052
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

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 31
Current: £3,428 GBP|Low: £1,122 GBP|High: £3,563 GBP|Avg: £1,981 GBP|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£1,122 GBP
Retailer 3£1,246 GBP
Retailer 2£1,352 GBP
Retailer 5£1,405 GBP
Retailer 6£1,527 GBP
Retailer 8£1,528 GBP
Retailer 10£2,063 GBP
Retailer 9£2,208 GBP
Retailer 4£2,462 GBP
NZ Jewellers£3,428 GBP

43 data points across 10 retailers

8 retailers£1,122 GBP to £3,428 GBP

A
Cheapest Retailer
-
£1,122 GBP
SGD 2,032 SGD
A
Retailer 2
-
£1,246 GBP
$1,670 USD
View
A
Retailer 3
-
£1,352 GBP
View
A
Retailer 4
-
£1,405 GBP
$1,883 USD
View
A
Retailer 5
-
£1,527 GBP
$2,046 USD
View
A
Retailer 6
-
£1,528 GBP
$2,048 USD
View
B+
Retailer 7
-
£2,462 GBP
View
Most Expensive
B
NZ Jewellers
399d53ce-f40a-492c-849c-2ccf37496c2c · Oct 30
£3,428 GBP
$4,593 USD
View
7 more retailers have this diamond
Prices start from £1,122 GBPSave up to £2,306 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
£1,122 GBP