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Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 5533597927

Certificate GIA 5533597927

Diamond specifications and retailer prices

From £3,944 GBP
$5,285 USD
As of October 30, 2026
Save £5,257 GBP (57%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £9,202 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5533597927. Listed at 26 retailers as of October 30, 2026, with prices from £3,944 to £9,202, a £5,257 spread on the same certified stone. NZ Jewellers lists it at £9,202. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 5533597927
Dimensions7.18 × 7.16 × 4.62 mm
L/W Ratio1.00
Top View
7.18 mm7.16 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5533597927
Side View
Table 56.0%Crown 38.5°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 64.5%

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: Oct 30
Current: £9,202 GBP|Low: £3,944 GBP|High: £9,202 GBP|Avg: £5,387 GBP
NZ Jewellers
Retailer 2
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Retailer 5
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Retailer 11
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Retailer 17
Retailer 18
Retailer 19
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Retailer 22
Retailer 23
Retailer 24
November 1, 2026
Retailer 16£3,944 GBP
Retailer 22£4,117 GBP
Retailer 24£4,172 GBP
Retailer 20£4,191 GBP
Retailer 23£4,347 GBP
Retailer 14£4,353 GBP
Retailer 12£4,601 GBP
Retailer 15£4,601 GBP
Retailer 10£4,624 GBP
Retailer 5£4,955 GBP
Retailer 9£4,984 GBP
Retailer 11£5,061 GBP
Retailer 19£5,152 GBP
Retailer 7£5,299 GBP
Retailer 8£5,299 GBP
Retailer 17£5,388 GBP
Retailer 3£5,478 GBP
Retailer 2£5,660 GBP
Retailer 6£5,751 GBP
Retailer 13£5,841 GBP
Retailer 4£6,301 GBP
Retailer 21£6,760 GBP
Retailer 18£7,667 GBP
NZ Jewellers£9,202 GBP

30 data points across 24 retailers

26 retailers£3,944 GBP to £9,202 GBP

A
Cheapest Retailer
-
£3,944 GBP
$5,285 USD
A
Retailer 2
-
£4,117 GBP
HK$43,100 HKD
View
A
Retailer 3
-
£4,172 GBP
$5,590 USD
View
A
Retailer 4
-
£4,191 GBP
$5,615 USD
View
A
Retailer 5
-
£4,347 GBP
$5,824 USD
View
A
Retailer 6
-
£4,353 GBP
$5,833 USD
View
A
Retailer 7
-
£4,513 GBP
A$9,303 AUD
View
B+
Retailer 8
-
£4,601 GBP
$6,165 USD
View
Final sale: no returns
A
Retailer 9
-
£4,601 GBP
$6,165 USD
View
A
Retailer 10
-
£4,624 GBP
$6,195 USD
View
B+
Retailer 11
-
£4,955 GBP
$6,639 USD
View
B+
Retailer 12
-
£4,984 GBP
$6,678 USD
View
B+
Retailer 13
-
£5,061 GBP
$6,781 USD
View
B+
Retailer 14
-
£5,152 GBP
View
B+
Retailer 15
-
£5,299 GBP
$7,100 USD
View
B+
Retailer 16
-
£5,299 GBP
$7,100 USD
View
Retailer 17
-
£5,388 GBP
A$11,107 AUD
View
Price last confirmed 11 days ago
B+
Retailer 18
-
£5,478 GBP
$7,340 USD
View
B+
Retailer 19
-
£5,660 GBP
€7,223 EUR
View
B+
Retailer 20
-
£5,751 GBP
$7,706 USD
View
B+
Retailer 21
-
£5,841 GBP
View
Retailer 22
-
£6,117 GBP
$8,196 USD
View
Price last confirmed 10 days ago
B
Retailer 23
-
£6,301 GBP
$8,442 USD
View
B
Retailer 24
-
£6,760 GBP
ZAR 146,319 ZAR
View
B
Retailer 25
-
£7,667 GBP
View
Most Expensive
B
NZ Jewellers
83ec2ec4-a2a9-4de2-8923-e46b322bb458 · Oct 30
£9,202 GBP
$12,329 USD
View
25 more retailers have this diamond
Prices start from £3,944 GBPSave up to £5,257 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
£3,944 GBP