Round|Natural|GIA

1.03ct E I1 Round Natural Diamond

EX • E/I1 • GIA 1206688770

Certificate GIA 1206688770

Diamond specifications and retailer prices

From $3,148 USD
As of October 29, 2026
Save $542 USD (15%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,353 USD at NZ Jewellers · As of September 27, 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 1206688770. Listed at 11 retailers as of October 29, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1206688770
Dimensions6.53 × 6.48 × 3.98 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.53 mm6.48 mm1.03 ctE / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1206688770
Side View
Table 56.0%Crown 34°Girdle: ThickPavilion 40.8°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,570 USD|Low: $2,733 USD|High: $4,254 USD|Avg: $3,516 USD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 12, 2026
Retailer 8$2,733 USD
Retailer 6$2,932 USD
Retailer 4$3,148 USD
Retailer 10$3,194 USD
Retailer 1$3,570 USD
Retailer 7$3,570 USD
Retailer 5$3,690 USD
Retailer 2$3,864 USD
Retailer 9$4,132 USD
Retailer 3$4,233 USD

15 data points across 10 retailers

11 retailers$3,148 USD to $3,690 USD

Retailer 1
-
$2,932 USD
Price last confirmed 23 days ago
B+
Retailer 2
-
$3,148 USD
View
Retailer 3
-
$3,194 USD
View
Price last confirmed 96 days ago
Retailer 4
-
$3,304 USD
View
Price last confirmed 23 days ago
Retailer 5
-
$3,304 USD
View
Price last confirmed 23 days ago
Retailer 6
-
$3,431 USD
View
Price last confirmed 31 days ago
B
Retailer 7
-
$3,570 USD
View
B
Retailer 8
-
$3,570 USD
View
B
Retailer 9
-
$3,690 USD
View
Retailer 10
-
$3,812 USD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
11bc954c-ccef-4532-b9ff-1d574119b9c4 · Sep 27
$6,353 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from $3,148 USDSave up to $542 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.

B+
1.03ct Round
$3,148 USD