Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6435180932

Certificate GIA 6435180932

Diamond specifications and retailer prices

From $2,613 USD
As of November 6, 2026
Save $2,998 USD (53%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: $5,611 USD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 6435180932. Listed at 34 retailers as of November 5, 2026, with a 115% 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

1.00
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6435180932
Dimensions6.48 × 6.42 × 3.90 mm
L/W Ratio1.01
Top View
6.48 mm6.42 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6435180932
Side View
Table 62.0%Crown 33°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,312 USD|Low: $2,650 USD|High: $5,450 USD|Avg: $3,814 USD|-0.4%
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 6, 2026
Retailer 9$2,650 USD
Retailer 3$2,693 USD
Retailer 12$2,918 USD
Retailer 5$3,079 USD
Retailer 2$3,309 USD
Retailer 1$3,312 USD
Retailer 4$3,453 USD
Retailer 6$3,740 USD
Retailer 8$3,746 USD
Retailer 7$3,931 USD
Retailer 11$5,334 USD
Retailer 10$5,386 USD

36 data points across 12 retailers

34 retailers$2,613 USD to $5,611 USD

A
Cheapest Retailer
-
$2,613 USD
A
Retailer 2
-
$2,650 USD
View
A
Retailer 3
-
$2,693 USD
View
Final sale: no returns
A
Retailer 4
-
$2,850 USD
View
Retailer 5
-
$2,918 USD
View
Price last confirmed 50 days ago
Retailer 6
-
$2,918 USD
View
Price last confirmed 28 days ago
Retailer 7
-
$2,918 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$2,918 USD
View
Price last confirmed 21 days ago
Retailer 9
-
$2,918 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$2,946 USD
View
Retailer 11
-
$3,030 USD
View
Price last confirmed 38 days ago
A
Retailer 12
-
$3,079 USD
View
B+
Retailer 13
-
$3,190 USD
View
B+
Retailer 14
-
$3,190 USD
View
B+
Retailer 15
-
$3,300 USD
View
B+
Retailer 16
-
$3,309 USD
View
Retailer 17
-
$3,309 USD
View
Price last confirmed 28 days ago
B+
Retailer 18
-
$3,312 USD
View
Retailer 19
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$3,367 USD
View
Price last confirmed 28 days ago
Retailer 20
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$3,367 USD
View
Price last confirmed 45 days ago
Retailer 21
-
$3,367 USD
View
Price last confirmed 16 days ago
B+
Retailer 22
-
$3,367 USD
View
Retailer 23
-
$3,453 USD
View
Price last confirmed 33 days ago
B+
Retailer 24
-
$3,587 USD
View
Retailer 25
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$3,736 USD
View
Price last confirmed 22 days ago
B+
Retailer 26
-
$3,740 USD
View
B+
Retailer 27
-
$3,746 USD
View
B+
Retailer 28
-
$3,931 USD
View
Retailer 29
-
$5,334 USD
View
Price last confirmed 9 days ago
B
Retailer 30
-
$5,386 USD
View
B
Retailer 31
-
$5,611 USD
View
Retailer 32
-
$5,611 USD
View
Price last confirmed 39 days ago
Retailer 33
-
$5,611 USD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
8b22a2a6-3c47-4f47-b165-e8d03f8bd461 · Oct 20
$5,611 USD
View
Price last confirmed 16 days ago
33 more retailers have this diamond
Prices start from $2,613 USDSave up to $2,998 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
1.00ct Round
$2,613 USD