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Round|Natural|GIA

1.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1553622825

Certificate GIA 1553622825

Diamond specifications and retailer prices

From £1,211 GBP
₹154,536 INR
As of October 31, 2026
Save £1,626 GBP (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,837 GBP at MOH London · As of October 29, 2026
View at MOH London

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 1553622825. Listed at 11 retailers as of October 29, 2026, with prices from £1,211 to £2,837, a £1,626 spread on the same certified stone. MOH London lists it at £2,837. 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
FluorescenceFaint
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1553622825
Dimensions6.38 × 6.42 × 4.02 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Natural
Top View
6.38 mm6.42 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553622825
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.8%

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: Oct 31
Current: £2,837 GBP|Low: £1,208 GBP|High: £2,856 GBP|Avg: £1,815 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 2£1,211 GBP
Retailer 10£1,455 GBP
Retailer 8£1,535 GBP
Retailer 7£1,611 GBP
Retailer 9£1,714 GBP
Retailer 4£1,757 GBP
Retailer 3£1,980 GBP
Retailer 6£1,981 GBP
Retailer 5£2,066 GBP
MOH London£2,837 GBP

33 data points across 10 retailers

11 retailers£1,211 GBP to £2,837 GBP

A
Cheapest Retailer
-
£1,211 GBP
₹154,536 INR
A
Retailer 2
-
£1,373 GBP
A$2,831 AUD
View
A
Retailer 3
-
£1,455 GBP
$1,950 USD
View
A
Retailer 4
-
£1,535 GBP
$2,057 USD
View
A
Retailer 5
-
£1,611 GBP
$2,158 USD
View
B+
Retailer 6
-
£1,714 GBP
$2,297 USD
View
A
Retailer 7
-
£1,757 GBP
View
B+
Retailer 8
-
£1,980 GBP
ZAR 42,859 ZAR
View
Retailer 9
-
£1,981 GBP
A$4,083 AUD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
£2,066 GBP
€2,637 EUR
View
Most Expensive
B
MOH London
17A119EBE · Oct 29
£2,837 GBP
View
10 more retailers have this diamond
Prices start from £1,211 GBPSave up to £1,626 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
£1,211 GBP