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1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2146020726

Certificate GIA 2146020726

Diamond specifications and retailer prices

From ₹13,61,583 INR
$14,340 USD
As of November 1, 2026
Save ₹9,27,031 INR (41%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: ₹27,14,785 INR at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2146020726. Listed at 21 retailers as of November 1, 2026, with a 68% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2146020726
Dimensions7.39 × 7.35 × 4.51 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.39 mm7.35 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2146020726
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: ₹24,32,833 INR|Low: ₹12,98,156 INR|High: ₹24,62,135 INR|Avg: ₹17,81,362 INR|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6₹13,61,583 INR
Retailer 7₹14,92,899 INR
Retailer 3₹16,08,106 INR
Retailer 5₹16,34,509 INR
Retailer 8₹16,61,625 INR
Retailer 2₹18,10,706 INR
Retailer 4₹22,88,614 INR
Retailer 1₹24,32,833 INR

42 data points across 8 retailers

21 retailers₹13,61,583 INR to ₹22,88,614 INR

B+
Cheapest Retailer
-
₹13,61,583 INR
$14,340 USD
B
Retailer 2
-
₹14,26,339 INR
$15,022 USD
View
B
Retailer 3
-
₹14,32,036 INR
$15,082 USD
View
B
Retailer 4
-
₹14,60,528 INR
CA$21,364 CAD
View
B
Retailer 5
-
₹14,92,899 INR
$15,723 USD
View
Final sale: no returns
B
Retailer 6
-
₹15,25,372 INR
$16,065 USD
View
B
Retailer 7
-
₹15,57,750 INR
$16,406 USD
View
B
Retailer 8
-
₹16,08,106 INR
£13,336 GBP
View
Retailer 9
-
₹16,34,509 INR
A$26,484 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
₹16,61,625 INR
$17,500 USD
View
B
Retailer 11
-
₹16,87,546 INR
$17,773 USD
View
B
Retailer 12
-
₹17,39,484 INR
$18,320 USD
View
B
Retailer 13
-
₹17,39,484 INR
$18,320 USD
View
B
Retailer 14
-
₹17,52,492 INR
$18,457 USD
View
B
Retailer 15
-
₹17,97,404 INR
$18,930 USD
View
B
Retailer 16
-
₹18,10,706 INR
€18,162 EUR
View
B
Retailer 17
-
₹18,11,171 INR
$19,075 USD
View
B
Retailer 18
-
₹22,06,828 INR
$23,242 USD
View
B
Retailer 19
-
₹22,88,614 INR
ZAR 389,392 ZAR
View
Retailer 20
-
₹24,32,833 INR
£20,175 GBP
View
Price under review
Most Expensive
Diamond Quarter
1.51SI1D2126AC85N · Oct 29
₹27,14,785 INR
£22,513 GBP
View
Price under review
20 more retailers have this diamond
Prices start from ₹13,61,583 INRSave up to ₹9,27,031 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+
1.51ct Round
₹13,61,583 INR