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Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6521400356

Certificate GIA 6521400356

Diamond specifications and retailer prices

From $3,417 SGD
As of November 4, 2026
Save $4,232 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,295 SGD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521400356. Listed at 19 retailers as of November 4, 2026, with a 124% 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6521400356
Dimensions6.47 × 6.44 × 4.00 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.47 mm6.44 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521400356
Side View
Table 57.0%Crown 35°Girdle: MD-STKPavilion 40.8°Culet: NoneDepth 62.0%

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: Nov 4
Current: $7,990 SGD|Low: $3,400 SGD|High: $8,295 SGD|Avg: $5,125 SGD|-3.7%
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
November 6, 2026
Retailer 12$3,417 SGD
Retailer 6$4,071 SGD
Retailer 11$4,126 SGD
Retailer 14$4,232 SGD
Retailer 13$4,407 SGD
Retailer 5$4,586 SGD
Retailer 2$4,717 SGD
Retailer 7$4,762 SGD
Retailer 3$4,771 SGD
Retailer 15$4,912 SGD
Retailer 4$5,292 SGD
Retailer 10$5,351 SGD
Retailer 8$5,597 SGD
Retailer 9$7,648 SGD
NZ Jewellers$7,990 SGD

40 data points across 15 retailers

19 retailers$3,417 SGD to $7,648 SGD

A
Cheapest Retailer
-
$3,417 SGD
A
Retailer 2
-
$4,071 SGD
View
A
Retailer 3
-
$4,126 SGD
View
B+
Retailer 4
-
$4,232 SGD
View
Final sale: no returns
B+
Retailer 5
-
$4,407 SGD
View
Retailer 6
-
$4,586 SGD
View
Price last confirmed 15 days ago
Retailer 7
-
$4,586 SGD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$4,717 SGD
View
Retailer 9
-
$4,762 SGD
View
Price last confirmed 10 days ago
Retailer 10
-
$4,763 SGD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$4,771 SGD
View
Retailer 12
-
$4,912 SGD
View
Price last confirmed 29 days ago
Retailer 13
-
$5,292 SGD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$5,351 SGD
View
Retailer 15
-
$5,494 SGD
View
Price last confirmed 45 days ago
B+
Retailer 16
-
$5,597 SGD
View
B
Retailer 17
-
$7,648 SGD
View
Retailer 18
-
$7,990 SGD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
4099b7e5-b132-43e6-bac6-add96e1d642a · Sep 19
$8,295 SGD
$6,494 USD
View
Price last confirmed 47 days ago
18 more retailers have this diamond
Prices start from $3,417 SGDSave up to $4,232 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
1.03ct Round
$3,417 SGD