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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 2324162144

Certificate GIA 2324162144

Diamond specifications and retailer prices

From £3,449 GBP
HK$36,100 HKD
As of November 1, 2026
Save £3,697 GBP (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £7,146 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2324162144. Listed at 14 retailers as of October 30, 2026, with prices from £3,449 to £7,146, a £3,697 spread on the same certified stone. NZ Jewellers lists it at £7,146. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2324162144
Dimensions7.18 × 5.48 × 3.94 mm
L/W Ratio1.31
Top View
7.18 mm5.48 mm1.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2324162144
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 71.9%

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 1
Current: £7,146 GBP|Low: £3,420 GBP|High: £7,146 GBP|Avg: £4,594 GBP
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 14£3,449 GBP
Retailer 5£3,688 GBP
Retailer 8£3,726 GBP
Retailer 3£3,944 GBP
Retailer 9£4,129 GBP
Retailer 2£4,139 GBP
Retailer 12£4,168 GBP
Retailer 15£4,273 GBP
Retailer 16£4,273 GBP
Retailer 17£4,273 GBP
Retailer 6£4,329 GBP
Retailer 4£4,388 GBP
Retailer 11£4,834 GBP
Retailer 18£4,930 GBP
Retailer 7£5,199 GBP
Retailer 10£5,716 GBP
Retailer 13£6,295 GBP
NZ Jewellers£7,146 GBP

27 data points across 18 retailers

14 retailers£3,449 GBP to £7,146 GBP

B+
Cheapest Retailer
-
£3,449 GBP
HK$36,100 HKD
B+
Retailer 2
-
£3,726 GBP
$4,993 USD
View
B+
Retailer 3
-
£3,944 GBP
$5,284 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,139 GBP
View
B+
Retailer 5
-
£4,168 GBP
View
B+
Retailer 6
-
£4,273 GBP
$5,725 USD
View
B+
Retailer 7
-
£4,273 GBP
$5,725 USD
View
B+
Retailer 8
-
£4,273 GBP
$5,725 USD
View
B+
Retailer 9
-
£4,329 GBP
$5,800 USD
View
B+
Retailer 10
-
£4,388 GBP
$5,880 USD
View
B
Retailer 11
-
£4,834 GBP
€6,169 EUR
View
B
Retailer 12
-
£4,930 GBP
$6,605 USD
View
B
Retailer 13
-
£6,295 GBP
View
Most Expensive
C
NZ Jewellers
2beb607f-577a-4639-a463-f2c77c8962a8 · Oct 30
£7,146 GBP
$9,575 USD
View
13 more retailers have this diamond
Prices start from £3,449 GBPSave up to £3,697 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
£3,449 GBP