Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2427279307

Certificate GIA 2427279307

Diamond specifications and retailer prices

From ₹8,66,957 INR

$9,100 USD

As of October 25, 2026

Save ₹9,39,374 INR (52%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: ₹18,06,331 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2427279307. Listed at 19 retailers as of October 25, 2026, with prices from ₹8,66,957 to ₹18,06,331, a ₹9,39,374 spread on the same certified stone. Diamond Quarter lists it at ₹18,06,331. 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

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32°

Pavilion angle41.4°

OriginNatural

Grading LabGIA

CertificateGIA 2427279307

Dimensions7.41 × 7.37 × 4.53 mm

L/W Ratio1.01

Star length50%

Lower girdle80%

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 2427279307

Side View

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: Oct 25

Current: ₹10,28,372 INR|Low: ₹8,66,957 INR|High: ₹14,99,102 INR|Avg: ₹11,38,799 INR|-0.3%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

October 29, 2026

Retailer 6₹8,66,957 INR

Retailer 8₹8,80,009 INR

Retailer 9₹9,38,410 INR

Retailer 1₹10,28,372 INR

Retailer 5₹10,44,284 INR

Retailer 4₹11,35,280 INR

Retailer 2₹11,73,326 INR

Retailer 7₹13,76,716 INR

Retailer 3₹14,89,181 INR

44 data points across 9 retailers

19 retailers₹8,66,957 INR to ₹18,06,331 INR

B+

Cheapest Retailer

₹8,66,957 INR

$9,100 USD

B+

Retailer 2

₹8,80,009 INR

$9,237 USD

View

B+

Retailer 3

₹9,38,410 INR

$9,850 USD

View

B+

Retailer 4

₹9,48,508 INR

$9,956 USD

View

B+

Retailer 5

₹10,27,487 INR

$10,785 USD

View

B+

Retailer 6

₹10,28,372 INR

£8,499 GBP

View

B+

Retailer 7

₹10,43,302 INR

$10,951 USD

View

B+

Retailer 8

₹10,44,284 INR

A$16,864 AUD

View

B+

Retailer 9

₹11,11,801 INR

$11,670 USD

View

B+

Retailer 10

₹11,11,801 INR

$11,670 USD

View

B+

Retailer 11

₹11,35,280 INR

€11,349 EUR

View

B+

Retailer 12

₹11,73,326 INR

£9,697 GBP

View

Retailer 13

₹11,85,635 INR

$12,445 USD

View

Retailer 14

₹12,41,368 INR

$13,030 USD

View

Retailer 15

₹12,47,942 INR

$13,099 USD

View

Retailer 16

₹13,76,716 INR

ZAR 233,452 ZAR

View

Price last confirmed 12 days ago

Retailer 17

₹14,89,181 INR

£12,308 GBP

View

Retailer 18

₹15,80,815 INR

$16,593 USD

View

Most Expensive

Diamond Quarter

1.51SI1E2407034AN · Oct 29

₹18,06,331 INR

£14,929 GBP

View

18 more retailers have this diamond

Prices start from ₹8,66,957 INRSave up to ₹9,39,374 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.

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B+

1.51ct Round

₹8,66,957 INR