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Radiant|Natural|GIA

1.34ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 1186001154

Certificate GIA 1186001154

Diamond specifications and retailer prices

From £4,196 GBP
As of November 6, 2026
Save £2,854 GBP (40%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £7,050 GBP at Steven Stone · As of November 7, 2026
View at Steven Stone

About this 1.34ct natural radiant diamond

This 1.34ct natural radiant sits in the one-and-a-quarter to one-and-a-half 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 1186001154. Listed at 5 retailers as of November 6, 2026, with prices from £4,196 to £7,050, a £2,854 spread on the same certified stone. Steven Stone lists it at £7,050. 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

1.34
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1186001154
Dimensions6.56 × 6.18 × 3.99 mm
L/W Ratio1.06
Girdle conditionFaceted
Cert comments
Pinpoints are not shown. Clouds are not shown.
Top View
6.56 mm6.18 mm1.34 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1186001154
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCuletDepth 64.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £5,734 GBP|Low: £4,196 GBP|High: £7,050 GBP|Avg: £5,015 GBP|+0.8%
Retailer 1
Retailer 2
Steven Stone
November 7, 2026
Retailer 2£4,196 GBP
Retailer 1£5,734 GBP
Steven Stone£7,050 GBP

35 data points across 3 retailers

5 retailers£4,196 GBP to £7,050 GBP

B+
Cheapest Retailer
-
£4,196 GBP
B+
Retailer 2
-
£4,483 GBP
View
B
Retailer 3
-
£4,622 GBP
View
B
Retailer 4
-
£5,734 GBP
View
Most Expensive
Steven Stone
142155932 · Nov 7
£7,050 GBP
View
4 more retailers have this diamond
Prices start from £4,196 GBPSave up to £2,854 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+
1.34ct Radiant
£4,196 GBP