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Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1537690621

Certificate GIA 1537690621

Diamond specifications and retailer prices

From HK$3,018 HKD
₹36,628 INR
As of October 29, 2026
Save HK$6,379 HKD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$14,084 HKD at NZ Jewellers · As of October 3, 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 1537690621. Listed at 17 retailers as of October 29, 2026, with a 211% 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 angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1537690621
Dimensions4.86 × 4.89 × 2.89 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
4.86 mm4.89 mm0.42 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1537690621
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.2%

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$5,029 HKD|Low: HK$3,012 HKD|High: HK$9,895 HKD|Avg: HK$5,292 HKD|-4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 5HK$3,018 HKD
Retailer 4HK$3,515 HKD
Retailer 11HK$4,101 HKD
Retailer 12HK$4,308 HKD
Retailer 10HK$4,331 HKD
Retailer 1HK$5,029 HKD
Retailer 3HK$5,077 HKD
Retailer 8HK$5,569 HKD
Retailer 6HK$5,610 HKD
Retailer 9HK$5,670 HKD
Retailer 2HK$6,262 HKD
Retailer 7HK$9,397 HKD

21 data points across 12 retailers

17 retailersHK$3,018 HKD to HK$9,397 HKD

A
Cheapest Retailer
-
HK$3,018 HKD
₹36,628 INR
A
Retailer 2
-
HK$3,515 HKD
View
A
Retailer 3
-
HK$4,101 HKD
A$804 AUD
View
A
Retailer 4
-
HK$4,308 HKD
SGD 742 SGD
View
A
Retailer 5
-
HK$4,331 HKD
$552 USD
View
Retailer 6
-
HK$4,488 HKD
$572 USD
View
Price last confirmed 26 days ago
Retailer 7
-
HK$4,873 HKD
$621 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
HK$5,029 HKD
£505 GBP
View
A
Retailer 9
-
HK$5,077 HKD
$647 USD
View
Retailer 10
-
HK$5,186 HKD
$661 USD
View
Price last confirmed 27 days ago
B+
Retailer 11
-
HK$5,569 HKD
€676 EUR
View
B+
Retailer 12
-
HK$5,610 HKD
$715 USD
View
B+
Retailer 13
-
HK$5,670 HKD
$723 USD
View
B+
Retailer 14
-
HK$6,262 HKD
ZAR 12,892 ZAR
View
Retailer 15
-
HK$6,755 HKD
A$1,324 AUD
View
Price last confirmed 26 days ago
B
Retailer 16
-
HK$9,397 HKD
£943 GBP
View
Most Expensive
NZ Jewellers
cf57c539-6933-4193-bf06-f1c5871f9122 · Oct 3
HK$14,084 HKD
$1,795 USD
View
Price last confirmed 27 days ago
16 more retailers have this diamond
Prices start from HK$3,018 HKDSave up to HK$6,379 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$3,018 HKD