CaratHunter
Plans
Round|Natural|GIA

1.66ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2547765261

Certificate GIA 2547765261

Diamond specifications and retailer prices

From ₹2,28,413 INR
As of November 4, 2026
Save ₹2,95,660 INR (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: ₹5,33,466 INR at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 1.66ct natural round diamond

This 1.66ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547765261. Listed at 13 retailers as of November 4, 2026, with a 129% 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

1.66
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2547765261
Dimensions7.53 × 7.58 × 4.71 mm
L/W Ratio1.01
Top View
7.53 mm7.58 mm1.66 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547765261
Side View
Table 58.0%Crown 36°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.3%

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: Nov 4
Current: ₹5,24,074 INR|Low: ₹2,24,751 INR|High: ₹5,58,260 INR|Avg: ₹3,46,253 INR|-6.1%
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 6, 2026
Retailer 11₹2,28,413 INR
Retailer 3₹2,51,706 INR
Retailer 8₹2,77,628 INR
Retailer 10₹2,91,622 INR
Retailer 4₹3,08,152 INR
Retailer 12₹3,08,527 INR
Retailer 2₹3,27,499 INR
Retailer 7₹3,32,946 INR
Retailer 5₹3,49,476 INR
Retailer 6₹3,67,133 INR
Retailer 9₹4,70,727 INR
NZ Jewellers₹5,24,074 INR

38 data points across 12 retailers

13 retailers₹2,28,413 INR to ₹5,24,074 INR

A
Cheapest Retailer
-
₹2,28,413 INR
Retailer 2
-
₹2,51,706 INR
View
Price last confirmed 16 days ago
A
Retailer 3
-
₹2,77,628 INR
View
Final sale: no returns
B+
Retailer 4
-
₹2,91,622 INR
View
B+
Retailer 5
-
₹3,08,152 INR
View
B+
Retailer 6
-
₹3,08,527 INR
View
B+
Retailer 7
-
₹3,27,499 INR
View
B+
Retailer 8
-
₹3,32,946 INR
View
B+
Retailer 9
-
₹3,49,476 INR
View
B+
Retailer 10
-
₹3,67,133 INR
View
B
Retailer 11
-
₹4,70,727 INR
View
B
Retailer 12
-
₹5,24,074 INR
View
Most Expensive
NZ Jewellers
c3dc410e-7922-4c5e-aaf1-a752583d0752 · Oct 23
₹5,33,466 INR
$5,680 USD
View
Price last confirmed 14 days ago
12 more retailers have this diamond
Prices start from ₹2,28,413 INRSave up to ₹2,95,660 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
1.66ct Round
₹2,28,413 INR