CaratHunter
Plans
Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2566398726

Certificate GIA 2566398726

Diamond specifications and retailer prices

From $2,368 USD
As of November 4, 2026
Save $2,952 USD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,320 USD at NZ Jewellers · As of November 2, 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 2566398726. Listed at 16 retailers as of November 2, 2026, with prices from $2,368 to $5,320, a $2,952 spread on the same certified stone. NZ Jewellers lists it at $5,320. 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
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566398726
Dimensions6.53 × 6.55 × 3.95 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.53 mm6.55 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566398726
Side View
Table 58.0%Crown 33.5°Girdle: MED-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: Nov 4
Current: $5,320 USD|Low: $2,368 USD|High: $5,709 USD|Avg: $3,416 USD|-6.8%
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
Retailer 16
November 4, 2026
Retailer 2$2,368 USD
Retailer 13$2,389 USD
Retailer 10$2,664 USD
Retailer 8$2,820 USD
Retailer 4$2,879 USD
Retailer 14$3,001 USD
Retailer 7$3,015 USD
Retailer 11$3,054 USD
Retailer 9$3,120 USD
Retailer 3$3,239 USD
Retailer 5$3,348 USD
Retailer 6$3,370 USD
Retailer 12$3,484 USD
Retailer 16$3,599 USD
Retailer 15$5,217 USD
NZ Jewellers$5,320 USD

26 data points across 16 retailers

16 retailers$2,368 USD to $5,320 USD

A
Cheapest Retailer
-
$2,368 USD
A
Retailer 2
-
$2,389 USD
View
A
Retailer 3
-
$2,664 USD
View
A
Retailer 4
-
$2,820 USD
View
A
Retailer 5
-
$3,001 USD
View
A
Retailer 6
-
$3,015 USD
View
A
Retailer 7
-
$3,054 USD
View
A
Retailer 8
-
$3,120 USD
View
B+
Retailer 9
-
$3,239 USD
View
B+
Retailer 10
-
$3,348 USD
View
Retailer 11
-
$3,370 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$3,484 USD
View
B+
Retailer 13
-
$3,599 USD
View
Retailer 14
-
$3,613 USD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$5,217 USD
View
Most Expensive
B
NZ Jewellers
50fac8a4-b084-4287-902a-f994f3f5cc93 · Nov 2
$5,320 USD
View
15 more retailers have this diamond
Prices start from $2,368 USDSave up to $2,952 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
$2,368 USD