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Radiant|Natural|GIA

1.70ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 6545455122

Certificate GIA 6545455122

Diamond specifications and retailer prices

From £2,118 GBP
As of November 6, 2026
Save £2,003 GBP (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,121 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545455122. Listed at 12 retailers as of November 5, 2026, with prices from £2,118 to £4,121, a £2,003 spread on the same certified stone. NZ Jewellers lists it at £4,121. 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

1.70
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545455122
Dimensions7.59 × 5.94 × 4.13 mm
L/W Ratio1.28
Top View
7.59 mm5.94 mm1.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545455122
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

How it works →
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 6
Current: £4,121 GBP|Low: £2,118 GBP|High: £4,123 GBP|Avg: £2,747 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3£2,118 GBP
Retailer 5£2,357 GBP
Retailer 9£2,365 GBP
Retailer 11£2,365 GBP
Retailer 12£2,369 GBP
Retailer 2£2,447 GBP
Retailer 10£2,456 GBP
Retailer 4£2,585 GBP
Retailer 8£2,729 GBP
Retailer 6£2,752 GBP
Retailer 7£3,945 GBP
NZ Jewellers£4,121 GBP

33 data points across 12 retailers

12 retailers£2,118 GBP to £4,121 GBP

A
Cheapest Retailer
-
£2,118 GBP
A
Retailer 2
-
£2,357 GBP
View
Retailer 3
-
£2,365 GBP
View
Price last confirmed 9 days ago
A
Retailer 4
-
£2,365 GBP
View
A
Retailer 5
-
£2,369 GBP
View
A
Retailer 6
-
£2,447 GBP
View
A
Retailer 7
-
£2,456 GBP
View
B+
Retailer 8
-
£2,585 GBP
View
B+
Retailer 9
-
£2,729 GBP
View
A
Retailer 10
-
£2,752 GBP
View
B+
Retailer 11
-
£3,945 GBP
View
Most Expensive
B
NZ Jewellers
25ec3faa-35a7-46a1-aee0-798c37acd31b · Nov 5
£4,121 GBP
$5,516 USD
View
11 more retailers have this diamond
Prices start from £2,118 GBPSave up to £2,003 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
1.70ct Radiant
£2,118 GBP