Round|Natural|GIA

0.30ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2416461284

Certificate GIA 2416461284

Diamond specifications and retailer prices

From £299 GBP
$401 USD
As of October 28, 2026
Save £434 GBP (59%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £734 GBP at MOH London · As of October 26, 2026
View at MOH London

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 top-tier cut grade and certified by GIA 2416461284. Listed at 28 retailers as of October 26, 2026, with prices from £299 to £734, a £434 spread on the same certified stone. MOH London lists it at £734. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.30
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2416461284
Dimensions4.29 × 4.24 × 2.61 mm
L/W Ratio1.01
Top View
4.29 mm4.24 mm0.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2416461284
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

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: Oct 28
Current: £734 GBP|Low: £299 GBP|High: £741 GBP|Avg: £471 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9£299 GBP
Retailer 6£310 GBP
Retailer 10£348 GBP
Retailer 2£391 GBP
Retailer 7£425 GBP
Retailer 3£483 GBP
Retailer 4£492 GBP
Retailer 8£508 GBP
Retailer 5£644 GBP
MOH London£734 GBP

43 data points across 10 retailers

28 retailers£299 GBP to £734 GBP

Retailer 1
-
£287 GBP
$385 USD
Price last confirmed 43 days ago
Retailer 2
-
£287 GBP
$385 USD
View
Price last confirmed 23 days ago
Retailer 3
-
£287 GBP
$385 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£298 GBP
$400 USD
View
Price last confirmed 76 days ago
B+
Retailer 5
-
£299 GBP
$401 USD
View
B
Retailer 6
-
£310 GBP
$415 USD
View
Retailer 7
-
£310 GBP
$415 USD
View
Price last confirmed 15 days ago
Retailer 8
-
£320 GBP
$429 USD
View
Price last confirmed 31 days ago
B
Retailer 9
-
£366 GBP
$490 USD
View
B
Retailer 10
-
£366 GBP
$490 USD
View
B
Retailer 11
-
£376 GBP
$504 USD
View
B
Retailer 12
-
£381 GBP
$510 USD
View
Retailer 13
-
£387 GBP
$518 USD
View
Price last confirmed 21 days ago
Retailer 14
-
£387 GBP
$518 USD
View
Price last confirmed 39 days ago
Retailer 15
-
£387 GBP
$518 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
£387 GBP
$518 USD
View
B
Retailer 17
-
£391 GBP
View
B
Retailer 18
-
£425 GBP
$569 USD
View
B
Retailer 19
-
£482 GBP
$645 USD
View
B
Retailer 20
-
£483 GBP
€616 EUR
View
B
Retailer 21
-
£492 GBP
ZAR 10,645 ZAR
View
Retailer 22
-
£508 GBP
A$1,047 AUD
View
Price last confirmed 27 days ago
B
Retailer 23
-
£644 GBP
View
Most Expensive
B
MOH London
DFEB367A0 · Oct 26
£734 GBP
View
23 more retailers have this diamond
Prices start from £299 GBPSave up to £434 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+
0.30ct Round
£299 GBP