Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2183738130

Certificate GIA 2183738130

Diamond specifications and retailer prices

From $3,075 USD
As of October 31, 2026
Save $3,616 USD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,971 USD 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
Color
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: $4,391 USD|Low: $2,628 USD|High: $6,772 USD|Avg: $4,289 USD|+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$3,096 USD
Retailer 5$3,154 USD
Retailer 11$3,346 USD
Retailer 2$3,883 USD
Retailer 9$3,943 USD
Retailer 6$4,067 USD
Retailer 12$4,241 USD
Retailer 1$4,391 USD
Retailer 10$4,584 USD
Retailer 8$4,918 USD
Retailer 4$5,782 USD
Retailer 7$6,691 USD

33 data points across 12 retailers

23 retailers$3,075 USD to $6,691 USD

A
Cheapest Retailer
-
$3,075 USD
A
Retailer 2
-
$3,096 USD
View
A
Retailer 3
-
$3,127 USD
View
A
Retailer 4
-
$3,154 USD
View
A
Retailer 5
-
$3,218 USD
View
B+
Retailer 6
-
$3,325 USD
View
Retailer 7
-
$3,389 USD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$3,480 USD
View
Retailer 9
-
$3,625 USD
View
Price last confirmed 44 days ago
B+
Retailer 10
-
$3,628 USD
View
Retailer 11
-
$3,708 USD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
$3,883 USD
View
B+
Retailer 13
-
$3,943 USD
View
B+
Retailer 14
-
$4,067 USD
View
Retailer 15
-
$4,183 USD
View
Price last confirmed 45 days ago
Retailer 16
-
$4,241 USD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
$4,277 USD
View
B+
Retailer 18
-
$4,391 USD
View
B+
Retailer 19
-
$4,584 USD
View
B+
Retailer 20
-
$4,918 USD
View
Retailer 21
-
$5,782 USD
View
Price last confirmed 11 days ago
B
Retailer 22
-
$6,691 USD
View
Most Expensive
NZ Jewellers
8363590a-6b36-4b83-82ef-8c882ce3cade · Sep 21
$6,971 USD
View
Price last confirmed 45 days ago
22 more retailers have this diamond
Prices start from $3,075 USDSave up to $3,616 USD

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
$3,075 USD