Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7552295425

Certificate GIA 7552295425

Diamond specifications and retailer prices

From £1,685 GBP
As of November 6, 2026
Save £2,619 GBP (61%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £4,304 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct 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 7552295425. Listed at 27 retailers as of November 5, 2026, with a 155% 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

1.05
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7552295425
Dimensions6.45 × 6.48 × 4.03 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Key to symbols
Twinning Wisp, Crystal, Cloud, Needle
Top View
6.45 mm6.48 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7552295425
Side View
Table 58.0%Crown 36°Girdle: Med. - Sli. ThickPavilion 40.8°Culet: NoneDepth 62.4%

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 6
Current: £2,153 GBP|Low: £1,578 GBP|High: £3,650 GBP|Avg: £2,261 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3£1,685 GBP
Retailer 12£1,687 GBP
Retailer 2£1,722 GBP
Retailer 10£1,865 GBP
Retailer 6£1,968 GBP
Retailer 11£2,115 GBP
Retailer 1£2,153 GBP
Retailer 4£2,306 GBP
Retailer 5£2,392 GBP
Retailer 7£2,424 GBP
Retailer 8£2,513 GBP
Retailer 9£3,607 GBP

36 data points across 12 retailers

27 retailers£1,685 GBP to £4,304 GBP

A
Cheapest Retailer
-
£1,685 GBP
A
Retailer 2
-
£1,687 GBP
View
A
Retailer 3
-
£1,722 GBP
View
Final sale: no returns
Retailer 4
-
£1,865 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£1,865 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£1,865 GBP
View
Price last confirmed 50 days ago
Retailer 7
-
£1,865 GBP
View
Price last confirmed 21 days ago
Retailer 8
-
£1,865 GBP
View
Price last confirmed 15 days ago
B+
Retailer 9
-
£1,897 GBP
View
Retailer 10
-
£1,951 GBP
View
Price last confirmed 38 days ago
B+
Retailer 11
-
£1,968 GBP
View
B+
Retailer 12
-
£2,115 GBP
View
Retailer 13
-
£2,152 GBP
View
Price last confirmed 45 days ago
Retailer 14
-
£2,152 GBP
View
Price last confirmed 28 days ago
Retailer 15
-
£2,152 GBP
View
Price last confirmed 16 days ago
B+
Retailer 16
-
£2,152 GBP
View
B+
Retailer 17
-
£2,153 GBP
View
Retailer 18
-
£2,306 GBP
View
Price last confirmed 30 days ago
B+
Retailer 19
-
£2,350 GBP
View
B+
Retailer 20
-
£2,392 GBP
View
B+
Retailer 21
-
£2,424 GBP
View
B
Retailer 22
-
£2,513 GBP
View
B
Retailer 23
-
£3,607 GBP
View
B
Retailer 24
-
£4,304 GBP
View
Retailer 25
-
£4,304 GBP
View
Price last confirmed 48 days ago
Retailer 26
-
£4,304 GBP
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
de38b704-ace6-4bb9-87c5-1d16d1de4a89 · Oct 20
£4,304 GBP
$5,793 USD
View
Price last confirmed 17 days ago
26 more retailers have this diamond
Prices start from £1,685 GBPSave up to £2,619 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
1.05ct Round
£1,685 GBP