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Radiant|Natural|GIA

1.65ct I SI1 Radiant Natural Diamond

I/SI1 • GIA 6432739950

Certificate GIA 6432739950

Diamond specifications and retailer prices

From £6,932 GBP
As of November 5, 2026
Save £666 GBP (9%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £7,598 GBP at Jared · As of November 6, 2026
View at Jared

About this 1.65ct natural radiant diamond

This 1.65ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA 6432739950. Listed at 5 retailers as of November 5, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.65
Carat
I
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6432739950
Dimensions8.13 × 5.82 × 4.08 mm
L/W Ratio1.40
Top View
8.13 mm5.82 mm1.65 ctI / SI1
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6432739950
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £7,598 GBP|Low: £6,932 GBP|High: £8,106 GBP|Avg: £7,455 GBP|-6.3%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5£6,932 GBP
Retailer 3£7,359 GBP
Retailer 4£7,359 GBP
Retailer 2£7,548 GBP
Jared£7,598 GBP

15 data points across 5 retailers

5 retailers£6,932 GBP to £7,598 GBP

B
Cheapest Retailer
-
£6,932 GBP
B
Retailer 2
-
£7,359 GBP
View
B
Retailer 3
-
£7,359 GBP
View
B
Retailer 4
-
£7,548 GBP
View
Most Expensive
C
Jared
146352620 · Nov 6
£7,598 GBP
$10,170 USD
View
4 more retailers have this diamond
Prices start from £6,932 GBPSave up to £666 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
1.65ct Radiant
£6,932 GBP