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Round|Natural|GIA

1.00ct K I1 Round Natural Diamond

EX • K/I1 • GIA 5413531239

Certificate GIA 5413531239

Diamond specifications and retailer prices

From $1,830 USD
As of November 4, 2026
Save $3,270 USD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,100 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5413531239. Listed at 12 retailers as of November 4, 2026, with prices from $1,830 to $5,100, a $3,270 spread on the same certified stone. NZ Jewellers lists it at $5,100. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
K
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5413531239
Dimensions6.43 × 6.38 × 3.98 mm
L/W Ratio1.01
Top View
6.43 mm6.38 mm1.00 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5413531239
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,100 USD|Low: $1,817 USD|High: $5,100 USD|Avg: $2,647 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 6$1,830 USD
Retailer 5$1,940 USD
Retailer 3$1,996 USD
Retailer 8$1,999 USD
Retailer 9$2,210 USD
Retailer 11$2,210 USD
Retailer 7$2,312 USD
Retailer 10$2,550 USD
Retailer 12$2,902 USD
Retailer 2$3,026 USD
Retailer 4$3,486 USD
NZ Jewellers$5,100 USD

24 data points across 12 retailers

12 retailers$1,830 USD to $5,100 USD

B
Cheapest Retailer
-
$1,830 USD
B
Retailer 2
-
$1,940 USD
View
B
Retailer 3
-
$1,999 USD
View
Retailer 4
-
$2,210 USD
View
Price last confirmed 56 days ago
Retailer 5
-
$2,210 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$2,210 USD
View
B
Retailer 7
-
$2,312 USD
View
Retailer 8
-
$2,550 USD
View
Price last confirmed 60 days ago
B
Retailer 9
-
$2,550 USD
View
B
Retailer 10
-
$3,026 USD
View
Retailer 11
-
$5,100 USD
View
Price last confirmed 57 days ago
Most Expensive
C
NZ Jewellers
f18f25e6-21ad-4998-b829-b65bdbbf91ca · Nov 5
$5,100 USD
View
11 more retailers have this diamond
Prices start from $1,830 USDSave up to $3,270 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 Round
$1,830 USD