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Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2557652255

Certificate GIA 2557652255

Diamond specifications and retailer prices

From ₹2,92,902 INR
HK$24,100 HKD
As of October 30, 2026
Save ₹3,71,771 INR (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: ₹6,88,767 INR at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557652255. Listed at 24 retailers as of October 29, 2026, with a 127% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557652255
Dimensions6.36 × 6.42 × 4.01 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
6.36 mm6.42 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557652255
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: ₹4,21,920 INR|Low: ₹2,92,902 INR|High: ₹6,69,134 INR|Avg: ₹4,08,544 INR|+0.5%
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
October 30, 2026
Retailer 3₹2,92,902 INR
Retailer 6₹2,98,377 INR
Retailer 12₹3,47,802 INR
Retailer 13₹3,64,798 INR
Retailer 2₹3,76,002 INR
Retailer 7₹3,81,544 INR
Retailer 8₹4,01,900 INR
Retailer 4₹4,09,391 INR
Retailer 1₹4,21,920 INR
Retailer 5₹4,23,903 INR
Retailer 11₹4,51,596 INR
Retailer 10₹4,81,418 INR
Retailer 9₹6,64,673 INR

27 data points across 13 retailers

24 retailers₹2,92,902 INR to ₹6,64,673 INR

A
Cheapest Retailer
-
₹2,92,902 INR
HK$24,100 HKD
A
Retailer 2
-
₹2,98,377 INR
View
B+
Retailer 3
-
₹3,28,361 INR
A$5,320 AUD
View
B+
Retailer 4
-
₹3,47,802 INR
$3,663 USD
View
B+
Retailer 5
-
₹3,64,798 INR
$3,842 USD
View
Final sale: no returns
B+
Retailer 6
-
₹3,72,534 INR
SGD 5,302 SGD
View
B+
Retailer 7
-
₹3,73,267 INR
A$6,048 AUD
View
B+
Retailer 8
-
₹3,76,002 INR
$3,960 USD
View
B+
Retailer 9
-
₹3,81,544 INR
£3,164 GBP
View
Retailer 10
-
₹3,81,604 INR
$4,019 USD
View
Price last confirmed 37 days ago
Retailer 11
-
₹3,81,604 INR
$4,019 USD
View
Price last confirmed 32 days ago
Retailer 12
-
₹3,95,372 INR
$4,164 USD
View
Price last confirmed 23 days ago
Retailer 13
-
₹3,95,372 INR
$4,164 USD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
₹4,01,900 INR
£3,333 GBP
View
B+
Retailer 15
-
₹4,09,391 INR
$4,312 USD
View
B+
Retailer 16
-
₹4,21,920 INR
€4,232 EUR
View
Retailer 17
-
₹4,23,903 INR
A$6,868 AUD
View
Price last confirmed 27 days ago
B+
Retailer 18
-
₹4,51,596 INR
£3,745 GBP
View
Retailer 19
-
₹4,56,140 INR
$4,804 USD
View
Price last confirmed 39 days ago
Retailer 20
-
₹4,56,140 INR
$4,804 USD
View
Price last confirmed 27 days ago
B
Retailer 21
-
₹4,81,418 INR
ZAR 81,910 ZAR
View
B
Retailer 22
-
₹6,64,673 INR
£5,512 GBP
View
Retailer 23
-
₹6,64,745 INR
$7,001 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
c622d397-570c-4952-9c80-b0d5219df204 · Oct 3
₹6,88,767 INR
$7,254 USD
View
Price last confirmed 28 days ago
23 more retailers have this diamond
Prices start from ₹2,92,902 INRSave up to ₹3,71,771 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
₹2,92,902 INR