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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 $2,337 SGD
As of November 4, 2026
Save $4,177 SGD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,514 SGD 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 $2,337 to $6,514, a $4,177 spread on the same certified stone. NZ Jewellers lists it at $6,514. 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
Colour
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: $6,514 SGD|Low: $2,321 SGD|High: $6,514 SGD|Avg: $3,381 SGD
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$2,337 SGD
Retailer 5$2,478 SGD
Retailer 3$2,549 SGD
Retailer 8$2,553 SGD
Retailer 9$2,823 SGD
Retailer 11$2,823 SGD
Retailer 7$2,953 SGD
Retailer 10$3,257 SGD
Retailer 12$3,707 SGD
Retailer 2$3,865 SGD
Retailer 4$4,453 SGD
NZ Jewellers$6,514 SGD

24 data points across 12 retailers

12 retailers$2,337 SGD to $6,514 SGD

B
Cheapest Retailer
-
$2,337 SGD
B
Retailer 2
-
$2,478 SGD
View
B
Retailer 3
-
$2,553 SGD
View
Retailer 4
-
$2,823 SGD
View
Price last confirmed 56 days ago
Retailer 5
-
$2,823 SGD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$2,823 SGD
View
B
Retailer 7
-
$2,953 SGD
View
Retailer 8
-
$3,257 SGD
View
Price last confirmed 60 days ago
B
Retailer 9
-
$3,257 SGD
View
B
Retailer 10
-
$3,865 SGD
View
Retailer 11
-
$6,514 SGD
View
Price last confirmed 57 days ago
Most Expensive
C
NZ Jewellers
f18f25e6-21ad-4998-b829-b65bdbbf91ca · Nov 5
$6,514 SGD
$5,100 USD
View
11 more retailers have this diamond
Prices start from $2,337 SGDSave up to $4,177 SGD

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
$2,337 SGD