Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6542117394

Certificate GIA 6542117394

Diamond specifications and retailer prices

From £243 GBP
₹30,876 INR
As of October 28, 2026
Save £519 GBP (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,443 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.42ct natural round diamond

This 0.42ct natural round sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542117394. Listed at 18 retailers as of October 28, 2026, with a 213% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.42
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542117394
Dimensions4.82 × 4.80 × 2.98 mm
L/W Ratio1.00
Star length50%
Top View
4.82 mm4.80 mm0.42 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542117394
Side View
Table 57.0%Crown 36°Girdle: MED-MEDPavilion 40.6°Culet: NoneDepth 61.9%

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 28
Current: £763 GBP|Low: £243 GBP|High: £813 GBP|Avg: £440 GBP|-6.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 7£243 GBP
Retailer 13£288 GBP
Retailer 2£352 GBP
Retailer 12£362 GBP
Retailer 5£390 GBP
Retailer 11£403 GBP
Retailer 4£434 GBP
Retailer 6£465 GBP
Retailer 9£468 GBP
Retailer 10£481 GBP
Retailer 3£519 GBP
Retailer 8£540 GBP
Retailer 1£763 GBP

19 data points across 13 retailers

18 retailers£243 GBP to £763 GBP

A
Cheapest Retailer
-
£243 GBP
₹30,876 INR
A
Retailer 2
-
£288 GBP
HK$3,000 HKD
View
A
Retailer 3
-
£352 GBP
SGD 633 SGD
View
A
Retailer 4
-
£362 GBP
$482 USD
View
A
Retailer 5
-
£376 GBP
$501 USD
View
Price last confirmed 28 days ago
A
Retailer 6
-
£390 GBP
$519 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
£403 GBP
View
A
Retailer 8
-
£406 GBP
$540 USD
View
Price last confirmed 30 days ago
A
Retailer 9
-
£434 GBP
$578 USD
View
A
Retailer 10
-
£435 GBP
$579 USD
View
Price last confirmed 29 days ago
A
Retailer 11
-
£465 GBP
$619 USD
View
A
Retailer 12
-
£468 GBP
$623 USD
View
A
Retailer 13
-
£481 GBP
$640 USD
View
B+
Retailer 14
-
£519 GBP
ZAR 11,165 ZAR
View
B+
Retailer 15
-
£540 GBP
€685 EUR
View
B+
Retailer 16
-
£566 GBP
A$1,160 AUD
View
Price last confirmed 25 days ago
B+
Retailer 17
-
£763 GBP
View
Most Expensive
B
NZ Jewellers
7ba2e992-bd3d-4f88-9831-fa0f5bbdbde4 · Sep 28
£1,443 GBP
$1,922 USD
View
Price last confirmed 31 days ago
17 more retailers have this diamond
Prices start from £243 GBPSave up to £519 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
0.42ct Round
£243 GBP