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Round|Natural|GIA

1.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6511657389

Certificate GIA 6511657389

Diamond specifications and retailer prices

From ₹5,50,558 INR
HK$45,300 HKD
As of October 31, 2026
Save ₹4,87,451 INR (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: ₹12,71,096 INR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511657389. Listed at 14 retailers as of October 29, 2026, with a 89% 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

1.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6511657389
Dimensions7.32 × 7.28 × 4.51 mm
L/W Ratio1.01
Top View
7.32 mm7.28 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6511657389
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.0%

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: Oct 31
Current: ₹5,50,558 INR|Low: ₹5,35,974 INR|High: ₹10,71,893 INR|Avg: ₹6,83,527 INR|-4.0%
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
Retailer 14
October 31, 2026
Retailer 2₹5,45,963 INR
Retailer 1₹5,50,558 INR
Retailer 8₹5,65,237 INR
Retailer 10₹5,88,310 INR
Retailer 13₹6,12,227 INR
Retailer 11₹6,19,454 INR
Retailer 14₹6,44,987 INR
Retailer 7₹6,61,958 INR
Retailer 12₹6,62,751 INR
Retailer 3₹7,15,839 INR
Retailer 6₹7,25,674 INR
Retailer 5₹7,74,338 INR
Retailer 4₹7,90,900 INR
Retailer 9₹10,38,009 INR

38 data points across 14 retailers

14 retailers₹5,50,558 INR to ₹10,38,009 INR

Retailer 1
-
₹5,45,963 INR
$5,750 USD
Price last confirmed 10 days ago
A
Retailer 2
-
₹5,50,558 INR
HK$45,300 HKD
View
A
Retailer 3
-
₹5,65,237 INR
$5,953 USD
View
A
Retailer 4
-
₹5,88,310 INR
$6,196 USD
View
A
Retailer 5
-
₹6,12,227 INR
$6,448 USD
View
A
Retailer 6
-
₹6,19,454 INR
$6,524 USD
View
Final sale: no returns
A
Retailer 7
-
₹6,44,987 INR
$6,793 USD
View
A
Retailer 8
-
₹6,61,958 INR
£5,489 GBP
View
A
Retailer 9
-
₹6,62,751 INR
$6,980 USD
View
A
Retailer 10
-
₹7,15,839 INR
SGD 10,188 SGD
View
A
Retailer 11
-
₹7,25,674 INR
A$11,758 AUD
View
Retailer 12
-
₹7,74,338 INR
$8,155 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
₹10,38,009 INR
£8,608 GBP
View
Most Expensive
NZ Jewellers
67d7e602-8786-4201-9a30-7eff39b7dc82 · Sep 25
₹12,71,096 INR
$13,387 USD
View
Price last confirmed 36 days ago
13 more retailers have this diamond
Prices start from ₹5,50,558 INRSave up to ₹4,87,451 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
₹5,50,558 INR