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Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1555561780

Certificate GIA 1555561780

Diamond specifications and retailer prices

From ₹5,46,316 INR
HK$44,800 HKD
As of October 22, 2026
Save ₹92,374 INR (14%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: ₹7,79,594 INR at The Perfect Carat · As of September 29, 2026
View at The Perfect Carat

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555561780. Listed at 6 retailers as of October 22, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555561780
Dimensions7.24 × 7.29 × 4.56 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
7.24 mm7.29 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555561780
Side View
Table 58.0%CrownGirdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

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 22
Current: ₹6,21,879 INR|Low: ₹5,46,316 INR|High: ₹10,95,349 INR|Avg: ₹7,25,499 INR|-18.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 22, 2026
Retailer 5₹5,46,316 INR
Retailer 1₹6,21,879 INR
Retailer 6₹6,36,825 INR
Retailer 2₹6,38,690 INR
Retailer 3₹8,17,074 INR
Retailer 4₹10,51,186 INR

26 data points across 6 retailers

6 retailers₹5,46,316 INR to ₹6,38,690 INR

A
Cheapest Retailer
-
₹5,46,316 INR
HK$44,800 HKD
A
Retailer 2
-
₹6,21,879 INR
€6,217 EUR
View
Price last confirmed 7 days ago
A
Retailer 3
-
₹6,36,825 INR
SGD 9,033 SGD
View
Price last confirmed 21 days ago
A
Retailer 4
-
₹6,38,690 INR
$6,704 USD
View
A
Retailer 5
-
₹7,59,016 INR
$7,967 USD
View
Price last confirmed 22 days ago
Most Expensive
B+
The Perfect Carat
tpc_f6a4e049-9738-4e80-b743-4f6da669d118 · Sep 29
₹7,79,594 INR
$8,183 USD
View
Price last confirmed 29 days ago
5 more retailers have this diamond
Prices start from ₹5,46,316 INRSave up to ₹92,374 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
1.51ct Round
₹5,46,316 INR