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Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 7566360755

Certificate GIA 7566360755

Diamond specifications and retailer prices

From HK$2,907 HKD
₹35,293 INR
As of October 29, 2026
Save HK$6,149 HKD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$14,678 HKD at NZ Jewellers · As of October 8, 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 7566360755. Listed at 17 retailers as of October 29, 2026, with a 212% 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 angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7566360755
Dimensions4.74 × 4.78 × 2.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Crystal
Top View
4.74 mm4.78 mm0.42 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566360755
Side View
Table 58.0%Crown 33.5°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 62.8%

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$4,856 HKD|Low: HK$2,811 HKD|High: HK$9,475 HKD|Avg: HK$5,208 HKD|+1.2%
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
Retailer 14
Retailer 15
October 29, 2026
Retailer 8HK$2,907 HKD
Retailer 5HK$3,414 HKD
Retailer 7HK$4,075 HKD
Retailer 14HK$4,162 HKD
Retailer 13HK$4,189 HKD
Retailer 3HK$4,205 HKD
Retailer 4HK$4,205 HKD
Retailer 1HK$4,856 HKD
Retailer 2HK$4,932 HKD
Retailer 12HK$5,387 HKD
Retailer 9HK$5,492 HKD
Retailer 6HK$6,025 HKD
Retailer 15HK$6,038 HKD
Retailer 10HK$7,943 HKD
Retailer 11HK$9,057 HKD

28 data points across 15 retailers

17 retailersHK$2,907 HKD to HK$9,057 HKD

A
Cheapest Retailer
-
HK$2,907 HKD
₹35,293 INR
A
Retailer 2
-
HK$3,414 HKD
View
A
Retailer 3
-
HK$3,828 HKD
$488 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
HK$4,162 HKD
SGD 717 SGD
View
A
Retailer 5
-
HK$4,189 HKD
$534 USD
View
A
Retailer 6
-
HK$4,205 HKD
$536 USD
View
A
Retailer 7
-
HK$4,205 HKD
$536 USD
View
A
Retailer 8
-
HK$4,417 HKD
$563 USD
View
Price last confirmed 20 days ago
A
Retailer 9
-
HK$4,856 HKD
£487 GBP
View
A
Retailer 10
-
HK$4,932 HKD
$629 USD
View
B+
Retailer 11
-
HK$5,387 HKD
€654 EUR
View
B+
Retailer 12
-
HK$5,492 HKD
$700 USD
View
B+
Retailer 13
-
HK$6,025 HKD
A$1,181 AUD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
HK$6,038 HKD
ZAR 12,434 ZAR
View
B+
Retailer 15
-
HK$7,943 HKD
£797 GBP
View
B
Retailer 16
-
HK$9,057 HKD
£909 GBP
View
Most Expensive
B
NZ Jewellers
508b233b-45c5-49a1-994a-b93806e21dd0 · Oct 8
HK$14,678 HKD
$1,871 USD
View
Price last confirmed 20 days ago
16 more retailers have this diamond
Prices start from HK$2,907 HKDSave up to HK$6,149 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$2,907 HKD