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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 $493 SGD
₹36,628 INR
As of October 29, 2026
Save $1,042 SGD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,301 SGD 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: $821 SGD|Low: $492 SGD|High: $1,616 SGD|Avg: $864 SGD|-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 5$493 SGD
Retailer 4$574 SGD
Retailer 11$670 SGD
Retailer 12$704 SGD
Retailer 10$707 SGD
Retailer 1$821 SGD
Retailer 3$829 SGD
Retailer 8$910 SGD
Retailer 6$916 SGD
Retailer 9$926 SGD
Retailer 2$1,023 SGD
Retailer 7$1,535 SGD

21 data points across 12 retailers

17 retailers$493 SGD to $1,535 SGD

A
Cheapest Retailer
-
$493 SGD
₹36,628 INR
A
Retailer 2
-
$574 SGD
HK$3,500 HKD
View
A
Retailer 3
-
$670 SGD
A$804 AUD
View
A
Retailer 4
-
$704 SGD
View
A
Retailer 5
-
$707 SGD
$552 USD
View
A
Retailer 6
-
$733 SGD
$572 USD
View
Price last confirmed 26 days ago
A
Retailer 7
-
$796 SGD
$621 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
$821 SGD
£505 GBP
View
A
Retailer 9
-
$829 SGD
$647 USD
View
B+
Retailer 10
-
$847 SGD
$661 USD
View
Price last confirmed 27 days ago
B+
Retailer 11
-
$910 SGD
€676 EUR
View
B+
Retailer 12
-
$916 SGD
$715 USD
View
B+
Retailer 13
-
$926 SGD
$723 USD
View
B+
Retailer 14
-
$1,023 SGD
ZAR 12,892 ZAR
View
B+
Retailer 15
-
$1,103 SGD
A$1,324 AUD
View
Price last confirmed 25 days ago
B
Retailer 16
-
$1,535 SGD
£943 GBP
View
Most Expensive
B
NZ Jewellers
cf57c539-6933-4193-bf06-f1c5871f9122 · Oct 3
$2,301 SGD
$1,795 USD
View
Price last confirmed 26 days ago
16 more retailers have this diamond
Prices start from $493 SGDSave up to $1,042 SGD

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
$493 SGD