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Oval|Natural|GIA

1.00ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 2556153700

Certificate GIA 2556153700

Diamond specifications and retailer prices

From $755 USD
As of November 1, 2026
Save $2,407 USD (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,162 USD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556153700. Listed at 21 retailers as of November 1, 2026, with prices from $755 to $3,162, a $2,407 spread on the same certified stone. NZ Jewellers lists it at $3,162. 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
K
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556153700
Dimensions7.93 × 5.61 × 3.30 mm
L/W Ratio1.41
Top View
7.93 mm5.61 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556153700
Side View
Table 65.0%CrownGirdle: Ext. ThickPavilionCulet: NDepth 58.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $3,162 USD|Low: $742 USD|High: $3,162 USD|Avg: $1,269 USD|+19.9%
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
Retailer 17
Retailer 18
November 4, 2026
Retailer 16$755 USD
Retailer 2$970 USD
Retailer 14$983 USD
Retailer 8$986 USD
Retailer 4$1,008 USD
Retailer 6$1,008 USD
Retailer 5$1,047 USD
Retailer 10$1,081 USD
Retailer 7$1,098 USD
Retailer 12$1,124 USD
Retailer 9$1,131 USD
Retailer 3$1,142 USD
Retailer 17$1,164 USD
Retailer 13$1,170 USD
Retailer 18$1,230 USD
Retailer 11$1,411 USD
Retailer 15$1,846 USD
NZ Jewellers$3,162 USD

25 data points across 18 retailers

21 retailers$755 USD to $3,162 USD

B+
Cheapest Retailer
-
$755 USD
B+
Retailer 2
-
$970 USD
View
B+
Retailer 3
-
$983 USD
View
B+
Retailer 4
-
$986 USD
View
B+
Retailer 5
-
$1,008 USD
View
Retailer 6
-
$1,008 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$1,045 USD
View
Price last confirmed 23 days ago
B+
Retailer 8
-
$1,047 USD
View
Retailer 9
-
$1,081 USD
View
Price last confirmed 11 days ago
B+
Retailer 10
-
$1,098 USD
View
B+
Retailer 11
-
$1,124 USD
View
B+
Retailer 12
-
$1,131 USD
View
B+
Retailer 13
-
$1,142 USD
View
B+
Retailer 14
-
$1,164 USD
View
B+
Retailer 15
-
$1,170 USD
View
Retailer 16
-
$1,205 USD
View
Price last confirmed 23 days ago
B+
Retailer 17
-
$1,230 USD
View
B+
Retailer 18
-
$1,411 USD
View
B
Retailer 19
-
$1,846 USD
View
Retailer 20
-
$2,548 USD
View
Price last confirmed 23 days ago
Most Expensive
C
NZ Jewellers
d36076f9-1fb4-451d-80b3-87e4a3a32238 · Nov 2
$3,162 USD
View
20 more retailers have this diamond
Prices start from $755 USDSave up to $2,407 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+
1.00ct Oval
$755 USD