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Round|Natural|GIA

1.51ct G I1 Round Natural Diamond

VG • G/I1 • GIA 1428570967

Certificate GIA 1428570967

Diamond specifications and retailer prices

From £3,076 GBP
HK$32,200 HKD
As of November 1, 2026
Save £3,972 GBP (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,048 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 1428570967. Listed at 8 retailers as of October 30, 2026, with prices from £3,076 to £7,048, a £3,972 spread on the same certified stone. NZ Jewellers lists it at £7,048. 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1428570967
Dimensions7.20 × 7.14 × 4.61 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
7.20 mm7.14 mm1.51 ctG / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1428570967
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £7,048 GBP|Low: £3,047 GBP|High: £7,048 GBP|Avg: £4,480 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£3,076 GBP
Retailer 3£3,081 GBP
Retailer 5£4,215 GBP
Retailer 6£4,215 GBP
Retailer 8£4,215 GBP
Retailer 2£4,748 GBP
Retailer 7£4,862 GBP
NZ Jewellers£7,048 GBP

45 data points across 8 retailers

8 retailers£3,076 GBP to £7,048 GBP

B+
Cheapest Retailer
-
£3,076 GBP
HK$32,200 HKD
A
Retailer 2
-
£3,081 GBP
₹393,130 INR
View
B
Retailer 3
-
£4,215 GBP
$5,647 USD
View
B
Retailer 4
-
£4,215 GBP
$5,647 USD
View
B
Retailer 5
-
£4,215 GBP
$5,647 USD
View
B
Retailer 6
-
£4,748 GBP
€6,059 EUR
View
B
Retailer 7
-
£4,862 GBP
$6,515 USD
View
Most Expensive
C
NZ Jewellers
f8b5f58a-e5eb-4034-8318-e240aec378b4 · Oct 30
£7,048 GBP
$9,444 USD
View
7 more retailers have this diamond
Prices start from £3,076 GBPSave up to £3,972 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.

A
1.51ct Round
£3,076 GBP