Round|Natural|GIA

0.42ct E SI2 Round Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From €237 EUR
₹25,087 INR
As of October 29, 2026
Save €1,092 EUR (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,366 EUR 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 19 retailers as of October 27, 2026, with a 461% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions4.77 × 4.73 × 3.00 mm
L/W Ratio1.01
Top View
4.77 mm4.73 mm0.42 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.2%

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: Oct 29
Current: €1,253 EUR|Low: €237 EUR|High: €1,335 EUR|Avg: €527 EUR|-6.1%
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
October 30, 2026
Retailer 8€237 EUR
Retailer 5€288 EUR
Retailer 14€329 EUR
Retailer 15€348 EUR
Retailer 9€354 EUR
Retailer 12€367 EUR
Retailer 2€423 EUR
Retailer 3€442 EUR
Retailer 6€456 EUR
Retailer 7€459 EUR
Retailer 11€500 EUR
Retailer 13€540 EUR
Retailer 10€680 EUR
Retailer 4€783 EUR
NZ Jewellers€1,253 EUR

21 data points across 15 retailers

19 retailers€237 EUR to €1,329 EUR

A
Cheapest Retailer
-
€237 EUR
₹25,087 INR
A
Retailer 2
-
€288 EUR
HK$2,500 HKD
View
A
Retailer 3
-
€329 EUR
$366 USD
View
A
Retailer 4
-
€348 EUR
SGD 524 SGD
View
A
Retailer 5
-
€354 EUR
$394 USD
View
Retailer 6
-
€356 EUR
$396 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
€367 EUR
$408 USD
View
Retailer 8
-
€411 EUR
$457 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
€423 EUR
£371 GBP
View
A
Retailer 10
-
€442 EUR
$492 USD
View
A
Retailer 11
-
€456 EUR
$507 USD
View
A
Retailer 12
-
€459 EUR
$511 USD
View
A
Retailer 13
-
€500 EUR
$557 USD
View
A
Retailer 14
-
€540 EUR
View
B+
Retailer 15
-
€680 EUR
£596 GBP
View
B+
Retailer 16
-
€783 EUR
£686 GBP
View
B
Retailer 17
-
€1,253 EUR
$1,395 USD
View
B
Retailer 18
-
€1,329 EUR
CA$2,054 CAD
View
Most Expensive
NZ Jewellers
66acc9f9-7d8c-49b1-ae4a-1d6a558c5f76 · Sep 28
€1,366 EUR
$1,520 USD
View
Price last confirmed 31 days ago
18 more retailers have this diamond
Prices start from €237 EURSave up to €1,092 EUR

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
€237 EUR