Round|Natural|GIA

1.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5526535811

Certificate GIA 5526535811

Diamond specifications and retailer prices

From £1,209 GBP
₹154,218 INR
As of November 1, 2026
Save £2,302 GBP (66%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,511 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 5526535811. Listed at 21 retailers as of October 30, 2026, with prices from £1,209 to £3,511, a £2,302 spread on the same certified stone. NZ Jewellers lists it at £3,511. 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
FluorescenceStrong
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5526535811
Dimensions6.48 × 6.45 × 3.93 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.48 mm6.45 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5526535811
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.8%

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 1
Current: £1,209 GBP|Low: £1,206 GBP|High: £2,978 GBP|Avg: £1,854 GBP|-2.5%
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 1, 2026
Retailer 1£1,209 GBP
Retailer 8£1,223 GBP
Retailer 11£1,371 GBP
Retailer 12£1,517 GBP
Retailer 3£1,549 GBP
Retailer 2£1,556 GBP
Retailer 5£1,616 GBP
Retailer 7£1,832 GBP
Retailer 10£2,058 GBP
Retailer 9£2,064 GBP
Retailer 4£2,065 GBP
Retailer 6£2,942 GBP

27 data points across 12 retailers

21 retailers£1,209 GBP to £3,511 GBP

A
Cheapest Retailer
-
£1,209 GBP
₹154,218 INR
A
Retailer 2
-
£1,223 GBP
HK$12,800 HKD
View
A
Retailer 3
-
£1,371 GBP
A$2,827 AUD
View
A
Retailer 4
-
£1,507 GBP
$2,019 USD
View
A
Retailer 5
-
£1,517 GBP
$2,032 USD
View
B+
Retailer 6
-
£1,549 GBP
$2,076 USD
View
Final sale: no returns
Retailer 7
-
£1,556 GBP
$2,085 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
£1,616 GBP
View
B+
Retailer 9
-
£1,679 GBP
$2,250 USD
View
B+
Retailer 10
-
£1,679 GBP
$2,250 USD
View
B+
Retailer 11
-
£1,687 GBP
$2,260 USD
View
B+
Retailer 12
-
£1,698 GBP
SGD 3,075 SGD
View
B+
Retailer 13
-
£1,757 GBP
$2,354 USD
View
B+
Retailer 14
-
£1,832 GBP
View
B+
Retailer 15
-
£1,937 GBP
$2,596 USD
View
B+
Retailer 16
-
£2,058 GBP
€2,626 EUR
View
B+
Retailer 17
-
£2,064 GBP
ZAR 44,682 ZAR
View
Retailer 18
-
£2,065 GBP
A$4,257 AUD
View
Price last confirmed 25 days ago
B
Retailer 19
-
£2,942 GBP
View
B
Retailer 20
-
£3,080 GBP
$4,127 USD
View
Most Expensive
B
NZ Jewellers
9b1f1994-cb76-4386-b648-2a8b267fe797 · Oct 30
£3,511 GBP
$4,704 USD
View
20 more retailers have this diamond
Prices start from £1,209 GBPSave up to £2,302 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
£1,209 GBP