Radiant|Natural|GIA

1.01ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 6545849299

Certificate GIA 6545849299

Diamond specifications and retailer prices

From £919 GBP
As of November 7, 2026
Save £820 GBP (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,323 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.01ct natural radiant diamond

This 1.01ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545849299. Listed at 10 retailers as of November 4, 2026, with a 89% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545849299
Dimensions4.96 × 6.62 × 3.40 mm
L/W Ratio1.33
Top View
4.96 mm6.62 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545849299
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: £1,077 GBP|Low: £919 GBP|High: £1,765 GBP|Avg: £1,195 GBP|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 6£919 GBP
Retailer 5£953 GBP
Retailer 1£1,077 GBP
Retailer 3£1,162 GBP
Retailer 2£1,322 GBP
Retailer 4£1,739 GBP

44 data points across 6 retailers

10 retailers£919 GBP to £1,739 GBP

A
Cheapest Retailer
-
£919 GBP
Retailer 2
-
£953 GBP
View
Price last confirmed 30 days ago
Retailer 3
-
£953 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£989 GBP
View
Price last confirmed 37 days ago
B+
Retailer 5
-
£1,077 GBP
View
Retailer 6
-
£1,099 GBP
View
Price last confirmed 39 days ago
B+
Retailer 7
-
£1,162 GBP
View
B+
Retailer 8
-
£1,322 GBP
View
B
Retailer 9
-
£1,739 GBP
View
Most Expensive
NZ Jewellers
998069ba-285a-4eab-bf2f-95fb6692f5c9 · Sep 30
£2,323 GBP
$3,109 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from £919 GBPSave up to £820 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 Radiant
£919 GBP