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Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2183738130

Certificate GIA 2183738130

Diamond specifications and retailer prices

From $3,928 SGD
As of October 31, 2026
Save $4,619 SGD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,904 SGD at NZ Jewellers · As of September 21, 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 2183738130. Listed at 23 retailers as of October 31, 2026, with a 118% 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 2183738130
Dimensions6.56 × 6.52 × 3.95 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Indented Natural
Top View
6.56 mm6.52 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2183738130
Side View
Table 60.0%Crown 35°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.4%

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 31
Current: $5,609 SGD|Low: $3,357 SGD|High: $8,650 SGD|Avg: $5,479 SGD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 3$3,955 SGD
Retailer 5$4,029 SGD
Retailer 11$4,274 SGD
Retailer 2$4,960 SGD
Retailer 9$5,036 SGD
Retailer 6$5,195 SGD
Retailer 12$5,417 SGD
Retailer 1$5,609 SGD
Retailer 10$5,855 SGD
Retailer 8$6,282 SGD
Retailer 4$7,385 SGD
Retailer 7$8,546 SGD

33 data points across 12 retailers

23 retailers$3,928 SGD to $8,546 SGD

A
Cheapest Retailer
-
$3,928 SGD
A
Retailer 2
-
$3,955 SGD
View
A
Retailer 3
-
$3,994 SGD
View
A
Retailer 4
-
$4,029 SGD
View
A
Retailer 5
-
$4,110 SGD
View
B+
Retailer 6
-
$4,247 SGD
View
Retailer 7
-
$4,329 SGD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$4,445 SGD
View
Retailer 9
-
$4,630 SGD
View
Price last confirmed 44 days ago
B+
Retailer 10
-
$4,634 SGD
View
Retailer 11
-
$4,736 SGD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
$4,960 SGD
View
B+
Retailer 13
-
$5,036 SGD
View
B+
Retailer 14
-
$5,195 SGD
View
Retailer 15
-
$5,343 SGD
View
Price last confirmed 45 days ago
Retailer 16
-
$5,417 SGD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
$5,463 SGD
View
B+
Retailer 18
-
$5,609 SGD
View
B+
Retailer 19
-
$5,855 SGD
View
B+
Retailer 20
-
$6,282 SGD
View
Retailer 21
-
$7,385 SGD
View
Price last confirmed 11 days ago
B
Retailer 22
-
$8,546 SGD
View
Most Expensive
NZ Jewellers
8363590a-6b36-4b83-82ef-8c882ce3cade · Sep 21
$8,904 SGD
$6,971 USD
View
Price last confirmed 45 days ago
22 more retailers have this diamond
Prices start from $3,928 SGDSave up to $4,619 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
$3,928 SGD