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Round|Natural|GIA

1.00ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1559065480

Certificate GIA 1559065480

Diamond specifications and retailer prices

From ₹1,25,753 INR
As of November 4, 2026
Save ₹1,66,285 INR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: ₹4,10,705 INR 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559065480. Listed at 20 retailers as of November 2, 2026, with a 132% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559065480
Dimensions6.33 × 6.38 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Indented Natural, Natural
Top View
6.33 mm6.38 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559065480
Side View
Table 58.0%Crown 34.5°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 63.1%

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: ₹1,36,240 INR|Low: ₹1,25,753 INR|High: ₹2,98,462 INR|Avg: ₹1,85,350 INR|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 9₹1,25,753 INR
Retailer 7₹1,32,744 INR
Retailer 1₹1,36,240 INR
Retailer 4₹1,60,333 INR
Retailer 11₹1,62,695 INR
Retailer 3₹1,68,174 INR
Retailer 2₹1,79,606 INR
Retailer 5₹1,84,236 INR
Retailer 10₹2,02,943 INR
Retailer 6₹2,26,658 INR
Retailer 8₹2,92,038 INR

28 data points across 11 retailers

20 retailers₹1,25,753 INR to ₹2,92,038 INR

A
Cheapest Retailer
-
₹1,25,753 INR
A
Retailer 2
-
₹1,32,744 INR
View
A
Retailer 3
-
₹1,36,240 INR
View
B+
Retailer 4
-
₹1,58,632 INR
View
B+
Retailer 5
-
₹1,58,726 INR
View
A
Retailer 6
-
₹1,60,333 INR
View
B+
Retailer 7
-
₹1,62,695 INR
View
B+
Retailer 8
-
₹1,68,174 INR
View
Retailer 9
-
₹1,68,363 INR
View
Price last confirmed 39 days ago
Retailer 10
-
₹1,68,363 INR
View
Price last confirmed 36 days ago
Retailer 11
-
₹1,75,355 INR
View
Price last confirmed 10 days ago
Retailer 12
-
₹1,76,205 INR
View
Price last confirmed 38 days ago
B+
Retailer 13
-
₹1,79,606 INR
View
B+
Retailer 14
-
₹1,84,236 INR
View
Retailer 15
-
₹1,94,345 INR
View
Price last confirmed 39 days ago
Retailer 16
-
₹1,94,345 INR
View
Price last confirmed 38 days ago
Retailer 17
-
₹2,02,943 INR
View
Price last confirmed 11 days ago
B
Retailer 18
-
₹2,26,658 INR
View
B
Retailer 19
-
₹2,92,038 INR
View
Most Expensive
NZ Jewellers
5a5dec67-3276-44b6-9378-734f69422a74 · Sep 28
₹4,10,705 INR
$4,347 USD
View
Price last confirmed 39 days ago
19 more retailers have this diamond
Prices start from ₹1,25,753 INRSave up to ₹1,66,285 INR

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
₹1,25,753 INR