Round|Natural|GIA

0.42ct E SI2 Round Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From $263 USD
₹25,087 INR
As of October 29, 2026
Save $1,215 USD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,520 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,402 USD|Low: $263 USD|High: $1,486 USD|Avg: $588 USD|-5.7%
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 29, 2026
Retailer 8$263 USD
Retailer 5$320 USD
Retailer 14$366 USD
Retailer 15$388 USD
Retailer 9$394 USD
Retailer 12$408 USD
Retailer 2$473 USD
Retailer 3$492 USD
Retailer 6$507 USD
Retailer 7$511 USD
Retailer 11$557 USD
Retailer 13$601 USD
Retailer 10$757 USD
Retailer 4$871 USD
NZ Jewellers$1,402 USD

21 data points across 15 retailers

19 retailers$263 USD to $1,479 USD

A
Cheapest Retailer
-
$263 USD
₹25,087 INR
A
Retailer 2
-
$320 USD
HK$2,500 HKD
View
A
Retailer 3
-
$366 USD
View
A
Retailer 4
-
$388 USD
SGD 524 SGD
View
A
Retailer 5
-
$394 USD
View
A
Retailer 6
-
$396 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
$408 USD
View
A
Retailer 8
-
$457 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$473 USD
£372 GBP
View
A
Retailer 10
-
$492 USD
View
A
Retailer 11
-
$507 USD
View
A
Retailer 12
-
$511 USD
View
A
Retailer 13
-
$557 USD
View
A
Retailer 14
-
$601 USD
€572 EUR
View
B+
Retailer 15
-
$757 USD
£596 GBP
View
B+
Retailer 16
-
$871 USD
£686 GBP
View
B
Retailer 17
-
$1,402 USD
View
B
Retailer 18
-
$1,479 USD
CA$2,054 CAD
View
Most Expensive
B
NZ Jewellers
66acc9f9-7d8c-49b1-ae4a-1d6a558c5f76 · Sep 28
$1,520 USD
View
Price last confirmed 31 days ago
18 more retailers have this diamond
Prices start from $263 USDSave up to $1,215 USD

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
$263 USD