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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 2145970060

Certificate GIA 2145970060

Diamond specifications and retailer prices

From £6,271 GBP
$8,415 USD
As of November 2, 2026
Save £5,613 GBP (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £11,884 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2145970060. Listed at 24 retailers as of October 30, 2026, with prices from £6,271 to £11,884, a £5,613 spread on the same certified stone. NZ Jewellers lists it at £11,884. 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

1.51
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2145970060
Dimensions6.76 × 5.97 × 4.16 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Feather, Cloud, Pinpoint
Top View
6.76 mm5.97 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2145970060
Side View
Table 68.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.7%

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 2
Current: £8,563 GBP|Low: £5,942 GBP|High: £11,270 GBP|Avg: £8,045 GBP|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2£6,271 GBP
Retailer 7£6,349 GBP
Retailer 9£7,130 GBP
Retailer 10£7,130 GBP
Retailer 3£7,806 GBP
Retailer 8£7,843 GBP
Retailer 6£7,845 GBP
Retailer 1£8,563 GBP
Retailer 5£10,475 GBP
Retailer 4£11,136 GBP

44 data points across 10 retailers

24 retailers£6,271 GBP to £11,884 GBP

B+
Cheapest Retailer
-
£6,271 GBP
$8,415 USD
B+
Retailer 2
-
£6,349 GBP
$8,520 USD
View
B
Retailer 3
-
£6,597 GBP
$8,853 USD
View
B
Retailer 4
-
£6,616 GBP
$8,878 USD
View
B
Retailer 5
-
£6,788 GBP
$9,110 USD
View
B
Retailer 6
-
£6,860 GBP
CA$12,785 CAD
View
B
Retailer 7
-
£7,061 GBP
$9,475 USD
View
B
Retailer 8
-
£7,130 GBP
$9,568 USD
View
B
Retailer 9
-
£7,130 GBP
$9,568 USD
View
Final sale: no returns
B
Retailer 10
-
£7,725 GBP
$10,366 USD
View
B
Retailer 11
-
£7,806 GBP
View
B
Retailer 12
-
£7,843 GBP
$10,525 USD
View
Retailer 13
-
£7,845 GBP
A$16,197 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
£7,895 GBP
$10,594 USD
View
B
Retailer 15
-
£8,223 GBP
$11,035 USD
View
B
Retailer 16
-
£8,376 GBP
$11,240 USD
View
B
Retailer 17
-
£8,376 GBP
$11,240 USD
View
B
Retailer 18
-
£8,563 GBP
€10,944 EUR
View
B
Retailer 19
-
£8,659 GBP
$11,620 USD
View
B
Retailer 20
-
£8,912 GBP
$11,960 USD
View
Retailer 21
-
£9,383 GBP
$12,592 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
£10,475 GBP
ZAR 227,091 ZAR
View
B
Retailer 23
-
£11,136 GBP
View
Most Expensive
C
NZ Jewellers
79c41613-54db-44fc-bf3a-66655627b226 · Oct 30
£11,884 GBP
$15,947 USD
View
23 more retailers have this diamond
Prices start from £6,271 GBPSave up to £5,613 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
£6,271 GBP