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Round|Natural|GIA

0.42ct E SI2 Round Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From HK$2,067 HKD
₹25,087 INR
As of October 29, 2026
Save HK$9,536 HKD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$11,927 HKD 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 29, 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: HK$10,946 HKD|Low: HK$2,067 HKD|High: HK$11,660 HKD|Avg: HK$4,632 HKD|-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 11HK$2,067 HKD
Retailer 6HK$2,511 HKD
Retailer 15HK$2,872 HKD
Retailer 3HK$3,043 HKD
Retailer 12HK$3,091 HKD
Retailer 14HK$3,201 HKD
Retailer 10HK$3,693 HKD
Retailer 4HK$3,860 HKD
Retailer 2HK$3,882 HKD
Retailer 7HK$4,009 HKD
Retailer 13HK$4,370 HKD
Retailer 9HK$4,746 HKD
Retailer 8HK$5,893 HKD
Retailer 5HK$6,836 HKD
NZ JewellersHK$10,946 HKD

21 data points across 15 retailers

19 retailersHK$2,067 HKD to HK$11,603 HKD

A
Cheapest Retailer
-
HK$2,067 HKD
₹25,087 INR
A
Retailer 2
-
HK$2,511 HKD
View
A
Retailer 3
-
HK$2,872 HKD
$366 USD
View
A
Retailer 4
-
HK$3,043 HKD
SGD 524 SGD
View
A
Retailer 5
-
HK$3,091 HKD
$394 USD
View
Retailer 6
-
HK$3,107 HKD
$396 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
HK$3,201 HKD
$408 USD
View
Retailer 8
-
HK$3,586 HKD
$457 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
HK$3,693 HKD
£371 GBP
View
A
Retailer 10
-
HK$3,860 HKD
$492 USD
View
A
Retailer 11
-
HK$3,882 HKD
$495 USD
View
A
Retailer 12
-
HK$4,009 HKD
$511 USD
View
A
Retailer 13
-
HK$4,370 HKD
$557 USD
View
A
Retailer 14
-
HK$4,746 HKD
€576 EUR
View
B+
Retailer 15
-
HK$5,893 HKD
£591 GBP
View
B+
Retailer 16
-
HK$6,836 HKD
£686 GBP
View
B
Retailer 17
-
HK$10,946 HKD
$1,395 USD
View
B
Retailer 18
-
HK$11,603 HKD
CA$2,054 CAD
View
Most Expensive
NZ Jewellers
66acc9f9-7d8c-49b1-ae4a-1d6a558c5f76 · Sep 28
HK$11,927 HKD
$1,520 USD
View
Price last confirmed 32 days ago
18 more retailers have this diamond
Prices start from HK$2,067 HKDSave up to HK$9,536 HKD

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
HK$2,067 HKD