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4.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6511140946

Certificate GIA 6511140946

Diamond specifications and retailer prices

From ₹82,93,883 INR
$87,350 USD
As of October 30, 2026
Save ₹27,08,810 INR (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: ₹1,10,02,692 INR at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 4.51ct natural round diamond

This 4.51ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511140946. Listed at 4 retailers as of October 30, 2026, with prices from ₹82,93,883 to ₹1,10,02,692, a ₹27,08,810 spread on the same certified stone. Diamond Quarter lists it at ₹1,10,02,692. 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

4.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6511140946
Dimensions10.53 × 10.45 × 6.62 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
10.53 mm10.45 mm4.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6511140946
Side View
Table 58.0%Crown 35°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: ₹82,93,883 INR|Low: ₹62,91,007 INR|High: ₹86,42,377 INR|Avg: ₹76,57,461 INR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 2, 2026
Retailer 5₹62,91,007 INR
Retailer 9₹64,42,207 INR
Retailer 8₹72,17,244 INR
Retailer 3₹76,22,261 INR
Retailer 10₹77,10,700 INR
Retailer 6₹78,63,759 INR
Retailer 1₹82,93,883 INR
Retailer 2₹83,27,590 INR
Retailer 7₹84,81,789 INR
Retailer 4₹86,42,377 INR

2 data points across 10 retailers

4 retailers₹82,93,883 INR to ₹1,10,02,692 INR

Retailer 1
-
₹64,42,207 INR
$67,848 USD
Price last confirmed 50 days ago
Retailer 2
-
₹78,63,759 INR
$82,820 USD
View
Price last confirmed 45 days ago
B
Retailer 3
-
₹82,93,883 INR
$87,350 USD
View
Most Expensive
B
Diamond Quarter
4.51SI1H6546B9B4N · Oct 31
₹1,10,02,692 INR
£91,243 GBP
View
3 more retailers have this diamond
Prices start from ₹82,93,883 INRSave up to ₹27,08,810 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.

B
4.51ct Round
₹82,93,883 INR