Round|Natural|GIA

1.00ct I SI2 Round Natural Diamond

VG • I/SI2 • GIA 5556658545

Certificate GIA 5556658545

Diamond specifications and retailer prices

From $1,459 USD
As of November 4, 2026
Save $1,887 USD (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $4,767 USD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 5556658545. Listed at 26 retailers as of November 4, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5556658545
Dimensions6.21 × 4.03 × 4.03 mm
L/W Ratio1.54
Culet sizeNone
Top View
6.21 mm4.03 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556658545
Side View
Table 57.0%Crown 37.5°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 64.6%

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 4
Current: $1,807 USD|Low: $1,420 USD|High: $3,465 USD|Avg: $1,995 USD|-1.7%
Retailer 1
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 6, 2026
Retailer 7$1,424 USD
Retailer 3$1,459 USD
Retailer 6$1,492 USD
Retailer 4$1,581 USD
Retailer 16$1,602 USD
Retailer 2$1,648 USD
Retailer 15$1,800 USD
Retailer 1$1,807 USD
Retailer 8$1,934 USD
Retailer 5$2,030 USD
Retailer 12$2,030 USD
Retailer 9$2,067 USD
Retailer 13$2,100 USD
Retailer 14$2,333 USD
Retailer 10$2,432 USD
Retailer 11$3,346 USD

27 data points across 16 retailers

26 retailers$1,459 USD to $3,346 USD

Retailer 1
-
$1,424 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$1,459 USD
View
A
Retailer 3
-
$1,492 USD
View
A
Retailer 4
-
$1,581 USD
View
A
Retailer 5
-
$1,602 USD
View
Final sale: no returns
A
Retailer 6
-
$1,648 USD
View
A
Retailer 7
-
$1,800 USD
View
A
Retailer 8
-
$1,807 USD
View
Retailer 9
-
$1,876 USD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$1,911 USD
View
Retailer 11
-
$1,934 USD
View
Price last confirmed 21 days ago
Retailer 12
-
$1,954 USD
View
Price last confirmed 28 days ago
Retailer 13
-
$1,962 USD
View
Price last confirmed 22 days ago
A
Retailer 14
-
$2,030 USD
View
A
Retailer 15
-
$2,030 USD
View
B+
Retailer 16
-
$2,067 USD
View
Retailer 17
-
$2,072 USD
View
Price last confirmed 51 days ago
B+
Retailer 18
-
$2,100 USD
View
Retailer 19
-
$2,164 USD
View
Price last confirmed 21 days ago
B+
Retailer 20
-
$2,333 USD
View
Retailer 21
-
$2,391 USD
View
Price last confirmed 53 days ago
B+
Retailer 22
-
$2,432 USD
View
B
Retailer 23
-
$3,346 USD
View
Retailer 24
-
$4,332 USD
View
Price last confirmed 52 days ago
Retailer 25
-
$4,332 USD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
8b009770-1bb8-4274-86ca-3ce52310d4c6 · Sep 28
$4,767 USD
View
Price last confirmed 39 days ago
25 more retailers have this diamond
Prices start from $1,459 USDSave up to $1,887 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
$1,459 USD