Round|Natural|GIA

0.30ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 2517701312

Certificate GIA 2517701312

Diamond specifications and retailer prices

From £116 GBP
₹14,774 INR
As of October 30, 2026
Save £634 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £750 GBP at NZ Jewellers · As of October 29, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2517701312. Listed at 19 retailers as of October 29, 2026, with prices from £116 to £750, a £634 spread on the same certified stone. NZ Jewellers lists it at £750. 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

0.30
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle32.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 2517701312
Dimensions4.30 × 4.26 × 2.62 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
4.30 mm4.26 mm0.30 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2517701312
Side View
Table 55.0%Crown 32.5°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £750 GBP|Low: £116 GBP|High: £780 GBP|Avg: £277 GBP|-3.8%
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
October 31, 2026
Retailer 11£116 GBP
Retailer 8£143 GBP
Retailer 4£166 GBP
Retailer 14£178 GBP
Retailer 6£179 GBP
Retailer 16£184 GBP
Retailer 5£202 GBP
Retailer 9£220 GBP
Retailer 2£247 GBP
Retailer 12£257 GBP
Retailer 13£263 GBP
Retailer 3£292 GBP
Retailer 7£319 GBP
Retailer 10£331 GBP
Retailer 15£384 GBP
NZ Jewellers£750 GBP

16 data points across 16 retailers

19 retailers£116 GBP to £750 GBP

A
Cheapest Retailer
-
£116 GBP
₹14,774 INR
B+
Retailer 2
-
£143 GBP
HK$1,500 HKD
View
A
Retailer 3
-
£166 GBP
$222 USD
View
A
Retailer 4
-
£178 GBP
$239 USD
View
A
Retailer 5
-
£179 GBP
SGD 325 SGD
View
A
Retailer 6
-
£184 GBP
$247 USD
View
Retailer 7
-
£185 GBP
$247 USD
View
Price last confirmed 45 days ago
A
Retailer 8
-
£202 GBP
$271 USD
View
B+
Retailer 9
-
£220 GBP
$295 USD
View
B+
Retailer 10
-
£247 GBP
View
B+
Retailer 11
-
£250 GBP
$335 USD
View
B+
Retailer 12
-
£257 GBP
ZAR 5,554 ZAR
View
B+
Retailer 13
-
£263 GBP
$352 USD
View
B
Retailer 14
-
£292 GBP
€372 EUR
View
Retailer 15
-
£303 GBP
A$625 AUD
View
Price last confirmed 27 days ago
B+
Retailer 16
-
£319 GBP
$428 USD
View
B
Retailer 17
-
£331 GBP
View
B
Retailer 18
-
£384 GBP
View
Most Expensive
B
NZ Jewellers
9e1a3edb-cacc-4067-8556-e04e9ef13d67 · Oct 29
£750 GBP
$1,005 USD
View
18 more retailers have this diamond
Prices start from £116 GBPSave up to £634 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
0.30ct Round
£116 GBP