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Round|Natural|GIA

1.01ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1559860829

Certificate GIA 1559860829

Diamond specifications and retailer prices

From £1,999 GBP
As of November 6, 2026
Save £2,524 GBP (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,522 GBP at NZ Jewellers · As of November 5, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559860829. Listed at 23 retailers as of November 5, 2026, with prices from £1,999 to £4,522, a £2,524 spread on the same certified stone. NZ Jewellers lists it at £4,522. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559860829
Dimensions6.34 × 6.37 × 4.00 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Cloud, Indented Natural
Top View
6.34 mm6.37 mm1.01 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559860829
Side View
Table 60.0%Crown 34°Girdle: THN-STKPavilion 41.8°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: Nov 6
Current: £4,522 GBP|Low: £1,979 GBP|High: £4,522 GBP|Avg: £2,925 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 22£1,999 GBP
Retailer 18£2,002 GBP
Retailer 19£2,286 GBP
Retailer 12£2,304 GBP
Retailer 9£2,395 GBP
Retailer 2£2,483 GBP
Retailer 7£2,499 GBP
Retailer 4£2,595 GBP
Retailer 6£2,595 GBP
Retailer 8£2,607 GBP
Retailer 13£2,653 GBP
Retailer 5£2,696 GBP
Retailer 3£2,703 GBP
Retailer 10£2,781 GBP
Retailer 20£2,924 GBP
Retailer 11£2,994 GBP
Retailer 16£3,012 GBP
Retailer 17£3,168 GBP
Retailer 14£3,764 GBP
Retailer 15£3,869 GBP
Retailer 21£4,328 GBP
NZ Jewellers£4,522 GBP

22 data points across 22 retailers

23 retailers£1,999 GBP to £4,522 GBP

A
Cheapest Retailer
-
£1,999 GBP
A
Retailer 2
-
£2,002 GBP
View
B+
Retailer 3
-
£2,286 GBP
View
B+
Retailer 4
-
£2,304 GBP
View
B+
Retailer 5
-
£2,395 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,483 GBP
View
B+
Retailer 7
-
£2,499 GBP
View
Retailer 8
-
£2,595 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£2,595 GBP
View
B+
Retailer 10
-
£2,607 GBP
View
B+
Retailer 11
-
£2,653 GBP
View
B
Retailer 12
-
£2,696 GBP
View
B
Retailer 13
-
£2,703 GBP
View
B+
Retailer 14
-
£2,781 GBP
View
Retailer 15
-
£2,870 GBP
View
Price last confirmed 29 days ago
B+
Retailer 16
-
£2,924 GBP
View
B
Retailer 17
-
£2,994 GBP
View
B+
Retailer 18
-
£3,012 GBP
View
B+
Retailer 19
-
£3,168 GBP
View
B
Retailer 20
-
£3,764 GBP
View
B
Retailer 21
-
£3,869 GBP
View
B
Retailer 22
-
£4,328 GBP
View
Most Expensive
B
NZ Jewellers
7bbcc13b-7f3f-4c63-83f4-6cca1274a6c5 · Nov 5
£4,522 GBP
$6,053 USD
View
22 more retailers have this diamond
Prices start from £1,999 GBPSave up to £2,524 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
£1,999 GBP