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Radiant|Natural|GIA

1.70ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 6561079650

Certificate GIA 6561079650

Diamond specifications and retailer prices

From £8,184 GBP
As of November 4, 2026
Save £6,374 GBP (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £14,557 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561079650. Listed at 10 retailers as of November 4, 2026, with prices from £8,184 to £14,557, a £6,374 spread on the same certified stone. NZ Jewellers lists it at £14,557. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561079650
Dimensions8.23 × 5.85 × 3.99 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
8.23 mm5.85 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561079650
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCuletDepth 68.1%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £14,557 GBP|Low: £8,184 GBP|High: £14,557 GBP|Avg: £10,513 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10£8,184 GBP
Retailer 3£8,374 GBP
Retailer 5£9,449 GBP
Retailer 9£9,462 GBP
Retailer 7£9,608 GBP
Retailer 8£9,890 GBP
Retailer 6£10,606 GBP
Retailer 11£10,918 GBP
Retailer 4£11,691 GBP
Retailer 2£13,568 GBP
NZ Jewellers£14,557 GBP

43 data points across 11 retailers

10 retailers£8,184 GBP to £14,557 GBP

B+
Cheapest Retailer
-
£8,184 GBP
B+
Retailer 2
-
£8,374 GBP
View
B
Retailer 3
-
£9,449 GBP
View
B
Retailer 4
-
£9,462 GBP
View
B
Retailer 5
-
£9,608 GBP
View
B
Retailer 6
-
£10,606 GBP
View
B
Retailer 7
-
£10,918 GBP
View
B
Retailer 8
-
£11,691 GBP
View
B
Retailer 9
-
£13,568 GBP
View
Most Expensive
B
NZ Jewellers
8f0959f0-b466-41e4-8c95-1cac699a9eb8 · Nov 5
£14,557 GBP
$19,485 USD
View
9 more retailers have this diamond
Prices start from £8,184 GBPSave up to £6,374 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+
1.70ct Radiant
£8,184 GBP