Round|Natural|GIA

1.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1438528883

Certificate GIA 1438528883

Diamond specifications and retailer prices

From £1,460 GBP
As of October 31, 2026
Save £2,067 GBP (59%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,209 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct 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 1438528883. Listed at 21 retailers as of October 31, 2026, with a 142% 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

1.01
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1438528883
Dimensions6.44 × 6.41 × 3.96 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal
Top View
6.44 mm6.41 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1438528883
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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: £1,927 GBP|Low: £1,456 GBP|High: £3,569 GBP|Avg: £2,160 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11£1,460 GBP
Retailer 2£1,502 GBP
Retailer 10£1,684 GBP
Retailer 7£1,761 GBP
Retailer 3£1,855 GBP
Retailer 1£1,927 GBP
Retailer 5£2,118 GBP
Retailer 8£2,268 GBP
Retailer 6£2,340 GBP
Retailer 4£2,457 GBP
Retailer 9£3,527 GBP

30 data points across 11 retailers

21 retailers£1,460 GBP to £3,527 GBP

A
Cheapest Retailer
-
£1,460 GBP
A
Retailer 2
-
£1,502 GBP
View
A
Retailer 3
-
£1,684 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,761 GBP
View
B+
Retailer 5
-
£1,855 GBP
View
B+
Retailer 6
-
£1,927 GBP
View
Retailer 7
-
£2,014 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£2,048 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
£2,074 GBP
View
Price last confirmed 109 days ago
Retailer 10
-
£2,091 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£2,118 GBP
View
Retailer 12
-
£2,118 GBP
View
Price last confirmed 7 days ago
Retailer 13
-
£2,255 GBP
View
Price last confirmed 30 days ago
B+
Retailer 14
-
£2,268 GBP
View
B
Retailer 15
-
£2,303 GBP
View
B
Retailer 16
-
£2,323 GBP
View
B
Retailer 17
-
£2,340 GBP
View
B+
Retailer 18
-
£2,457 GBP
View
B
Retailer 19
-
£3,066 GBP
View
B
Retailer 20
-
£3,527 GBP
View
Most Expensive
NZ Jewellers
77029f9c-3a9e-492a-b6db-61a7ae985a5a · Oct 30
£4,209 GBP
$5,665 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from £1,460 GBPSave up to £2,067 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
1.01ct Round
£1,460 GBP