Round|Natural|IGI

1.51ct F SI2 Round Natural Diamond

VG • F/SI2 • IGI 487189405

Shape and cutting style on the report: Round brilliant

Certificate IGI 487189405

Diamond specifications and retailer prices

From $6,916 USD

₹658,629 INR

As of November 2, 2026

Save $8,459 USD (55%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: $15,374 USD at Diamond Quarter · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 487189405. Listed at 20 retailers as of November 2, 2026, with prices from $6,916 to $15,374, a $8,459 spread on the same certified stone. Diamond Quarter lists it at $15,374. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51

Carat

Color

SI2

Clarity

Very Good

Cut

Specifications

CutVery Good

PolishExcellent

SymmetryVery Good

FluorescenceFaint

Crown angle36.5°

Pavilion angle41.6°

OriginNatural

Grading LabIGI

CertificateIGI 487189405

Dimensions7.24 × 7.17 × 4.61 mm

L/W Ratio1.01

Girdle conditionFaceted

Culet sizePointed

View IGI Report →View Loupe360 Video →

Top View

OriginNatural

CutVery Good

PolishExcellent

SymmetryVery Good

FluorescenceFaint

CertificateIGI 487189405

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: Nov 2

Current: $6,916 USD|Low: $6,902 USD|High: $15,263 USD|Avg: $9,650 USD|-0.9%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

November 2, 2026

Retailer 1$6,916 USD

Retailer 7$7,745 USD

Retailer 12$7,786 USD

Retailer 9$8,423 USD

Retailer 11$8,424 USD

Retailer 2$9,126 USD

Retailer 10$9,266 USD

Retailer 8$9,432 USD

Retailer 5$9,689 USD

Retailer 4$10,530 USD

Retailer 6$12,719 USD

Retailer 3$15,263 USD

46 data points across 12 retailers

20 retailers$6,916 USD to $15,374 USD

B+

Cheapest Retailer

$6,916 USD

₹658,629 INR

B+

Retailer 2

$7,745 USD

View

B+

Retailer 3

$7,786 USD

View

B+

Retailer 4

$7,888 USD

View

Retailer 5

$8,423 USD

View

Final sale: no returns

Retailer 6

$8,424 USD

View

Price last confirmed 9 days ago

Retailer 7

$9,126 USD

View

Price last confirmed 11 days ago

Retailer 8

$9,126 USD

View

Price last confirmed 45 days ago

Retailer 9

$9,126 USD

View

Price last confirmed 47 days ago

Retailer 10

$9,266 USD

View

Price last confirmed 11 days ago

Retailer 11

$9,327 USD

View

Retailer 12

$9,689 USD

£7,629 GBP

View

Retailer 13

$10,530 USD

View

Price last confirmed 43 days ago

Retailer 14

$10,530 USD

View

Price last confirmed 10 days ago

Retailer 15

$10,530 USD

View

Price last confirmed 49 days ago

Retailer 16

$12,719 USD

£10,015 GBP

View

Retailer 17

$15,263 USD

View

Price last confirmed 42 days ago

Retailer 18

$15,263 USD

View

Price last confirmed 9 days ago

Retailer 19

$15,263 USD

View

Price last confirmed 48 days ago

Most Expensive

Diamond Quarter

1.51SI2F480558E2N · Nov 2

$15,374 USD

£12,106 GBP

View

19 more retailers have this diamond

Prices start from $6,916 USDSave up to $8,459 USD

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

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