Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 7372989606

Certificate GIA 7372989606

Diamond specifications and retailer prices

From £4,680 GBP
$6,280 USD
As of November 2, 2026
Save £5,862 GBP (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £10,541 GBP at NZ Jewellers · As of October 27, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7372989606. Listed at 24 retailers as of October 27, 2026, with prices from £4,680 to £10,541, a £5,862 spread on the same certified stone. NZ Jewellers lists it at £10,541. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7372989606
Dimensions7.30 × 5.83 × 3.97 mm
L/W Ratio1.25
Top View
7.30 mm5.83 mm1.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7372989606
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.1%

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: £8,831 GBP|Low: £4,392 GBP|High: £8,889 GBP|Avg: £6,010 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 3£4,680 GBP
Retailer 11£4,728 GBP
Retailer 14£4,979 GBP
Retailer 4£5,204 GBP
Retailer 12£5,268 GBP
Retailer 13£5,271 GBP
Retailer 2£5,798 GBP
Retailer 8£5,915 GBP
Retailer 5£6,037 GBP
Retailer 10£6,046 GBP
Retailer 7£6,518 GBP
Retailer 6£6,588 GBP
Retailer 9£7,674 GBP
Retailer 1£8,831 GBP

40 data points across 14 retailers

24 retailers£4,680 GBP to £10,541 GBP

B+
Cheapest Retailer
-
£4,680 GBP
$6,280 USD
Retailer 2
-
£4,728 GBP
$6,345 USD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
£4,890 GBP
$6,562 USD
View
B+
Retailer 4
-
£4,906 GBP
A$10,129 AUD
View
B+
Retailer 5
-
£4,979 GBP
$6,682 USD
View
B+
Retailer 6
-
£5,059 GBP
$6,788 USD
View
B+
Retailer 7
-
£5,204 GBP
CA$9,699 CAD
View
Retailer 8
-
£5,268 GBP
$7,070 USD
View
Price last confirmed 5 days ago
Retailer 9
-
£5,271 GBP
$7,073 USD
View
Price last confirmed 8 days ago
Retailer 10
-
£5,315 GBP
$7,132 USD
View
Price last confirmed 8 days ago
Retailer 11
-
£5,710 GBP
$7,663 USD
View
Price last confirmed 7 days ago
Retailer 12
-
£5,798 GBP
$7,780 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£5,915 GBP
View
B
Retailer 14
-
£6,037 GBP
$8,101 USD
View
Retailer 15
-
£6,046 GBP
A$12,482 AUD
View
Price last confirmed 11 days ago
B
Retailer 16
-
£6,297 GBP
$8,450 USD
View
B
Retailer 17
-
£6,297 GBP
$8,450 USD
View
B
Retailer 18
-
£6,506 GBP
$8,730 USD
View
B
Retailer 19
-
£6,518 GBP
€8,330 EUR
View
B
Retailer 20
-
£6,588 GBP
$8,841 USD
View
Retailer 21
-
£6,943 GBP
$9,317 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
£7,674 GBP
ZAR 166,372 ZAR
View
B
Retailer 23
-
£8,831 GBP
View
Most Expensive
C
NZ Jewellers
f756ac3a-3f0a-4f1f-adc0-c6c304c7fd60 · Oct 27
£10,541 GBP
$14,146 USD
View
23 more retailers have this diamond
Prices start from £4,680 GBPSave up to £5,862 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
£4,680 GBP