Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5182557110

Certificate GIA 5182557110

Diamond specifications and retailer prices

From £5,342 GBP
$7,169 USD
As of November 2, 2026
Save £2,162 GBP (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,504 GBP at Jared · As of November 2, 2026
View at Jared

About this 1.51ct natural radiant diamond

This 1.51ct 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 5182557110. Listed at 8 retailers as of November 2, 2026, with prices from £5,342 to £7,504, a £2,162 spread on the same certified stone. Jared lists it at £7,504. 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

1.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5182557110
Dimensions6.91 × 6.42 × 4.06 mm
L/W Ratio1.08
Top View
6.91 mm6.42 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5182557110
Side View
Table 70.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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

Last verified: Nov 2
Current: £7,273 GBP|Low: £5,289 GBP|High: £7,320 GBP|Avg: £6,480 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
November 3, 2026
Retailer 2£5,342 GBP
Retailer 3£6,841 GBP
Retailer 1£7,273 GBP

33 data points across 3 retailers

8 retailers£5,342 GBP to £7,504 GBP

B+
Cheapest Retailer
-
£5,342 GBP
$7,169 USD
B+
Retailer 2
-
£5,728 GBP
A$11,826 AUD
View
B+
Retailer 3
-
£5,906 GBP
$7,926 USD
View
B+
Retailer 4
-
£6,841 GBP
$9,180 USD
View
B
Retailer 5
-
£7,266 GBP
$9,750 USD
View
B
Retailer 6
-
£7,266 GBP
$9,750 USD
View
B+
Retailer 7
-
£7,273 GBP
View
Most Expensive
B
Jared
130463369 · Nov 2
£7,504 GBP
$10,070 USD
View
7 more retailers have this diamond
Prices start from £5,342 GBPSave up to £2,162 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+
1.51ct Radiant
£5,342 GBP