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Round|Natural|GIA

1.00ct M I1 Round Natural Diamond

EX • M/I1 • GIA 5416188934

Certificate GIA 5416188934

Diamond specifications and retailer prices

From £551 GBP
As of November 4, 2026
Save £1,753 GBP (76%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,305 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded M colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5416188934. Listed at 9 retailers as of November 4, 2026, with prices from £551 to £2,305, a £1,753 spread on the same certified stone. NZ Jewellers lists it at £2,305. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
M
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5416188934
Dimensions6.38 × 6.41 × 3.98 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.38 mm6.41 mm1.00 ctM / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5416188934
Side View
Table 57.0%Crown 35.5°GirdlePavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £944 GBP|Low: £542 GBP|High: £2,778 GBP|Avg: £1,112 GBP|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2£551 GBP
Retailer 5£718 GBP
Retailer 3£818 GBP
Retailer 4£874 GBP
Retailer 1£944 GBP
Retailer 7£1,045 GBP
Retailer 6£2,778 GBP

19 data points across 7 retailers

9 retailers£551 GBP to £2,305 GBP

B+
Cheapest Retailer
-
£551 GBP
B+
Retailer 2
-
£718 GBP
View
Retailer 3
-
£735 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£735 GBP
View
B+
Retailer 5
-
£763 GBP
View
B+
Retailer 6
-
£848 GBP
View
B+
Retailer 7
-
£944 GBP
View
B
Retailer 8
-
£1,045 GBP
View
Most Expensive
C
NZ Jewellers
8e7c97dd-efd0-476e-bbad-a18824c8bf44 · Nov 5
£2,305 GBP
$3,102 USD
View
8 more retailers have this diamond
Prices start from £551 GBPSave up to £1,753 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.

B+
1.00ct Round
£551 GBP