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Radiant|Natural|GIA

1.70ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 3555449767

Certificate GIA 3555449767

Diamond specifications and retailer prices

From £5,917 GBP
As of November 7, 2026
Save £5,359 GBP (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £11,276 GBP at NZ Jewellers · As of November 3, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555449767. Listed at 7 retailers as of November 3, 2026, with prices from £5,917 to £11,276, a £5,359 spread on the same certified stone. NZ Jewellers lists it at £11,276. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle52.47°
Pavilion angle36.84°
OriginNatural
Grading LabGIA
CertificateGIA 3555449767
Dimensions7.65 × 5.99 × 4.16 mm
L/W Ratio1.28
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural
Top View
7.65 mm5.99 mm1.70 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555449767
Side View
Table 73.0%Crown 52.47°GirdlePavilion 36.84°Culet: NoneDepth 69.4%

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 7
Current: £11,276 GBP|Low: £5,917 GBP|High: £11,390 GBP|Avg: £7,426 GBP|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 4£5,917 GBP
Retailer 8£5,982 GBP
Retailer 2£6,313 GBP
Retailer 6£6,350 GBP
Retailer 9£6,618 GBP
Retailer 7£6,742 GBP
Retailer 5£6,844 GBP
Retailer 3£9,343 GBP
NZ Jewellers£11,276 GBP

39 data points across 9 retailers

7 retailers£5,917 GBP to £11,276 GBP

B+
Cheapest Retailer
-
£5,917 GBP
B+
Retailer 2
-
£6,313 GBP
View
Retailer 3
-
£6,350 GBP
View
Price last confirmed 15 days ago
B+
Retailer 4
-
£6,742 GBP
View
B+
Retailer 5
-
£6,844 GBP
View
B
Retailer 6
-
£9,343 GBP
View
Most Expensive
B
NZ Jewellers
d395f20a-4df8-4ef6-8a60-4de3dc458fba · Nov 3
£11,276 GBP
$15,093 USD
View
6 more retailers have this diamond
Prices start from £5,917 GBPSave up to £5,359 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
£5,917 GBP