Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6555417728

Certificate GIA 6555417728

Diamond specifications and retailer prices

From ₹5,64,340 INR

A$9,118 AUD

As of October 29, 2026

11 retailers carry this diamond

Most expensive: ₹9,63,626 INR at NZ Jewellers · As of September 30, 2026

View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant 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 stated by the retailer rather than the lab and certified by GIA 6555417728. Listed at 11 retailers as of October 29, 2026. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

OriginNatural

Grading LabGIA

CertificateGIA 6555417728

Dimensions7.54 × 5.78 × 3.94 mm

L/W Ratio1.30

Girdle conditionPolished

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 6555417728

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29

Current: ₹9,63,626 INR|Low: ₹4,24,148 INR|High: ₹10,30,471 INR|Avg: ₹5,82,137 INR|-6.5%

NZ Jewellers

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

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

September 30, 2026

Retailer 3₹4,24,148 INR

Retailer 10₹4,38,964 INR

Retailer 5₹4,41,630 INR

Retailer 15₹4,59,341 INR

Retailer 2₹4,84,176 INR

Retailer 9₹4,88,187 INR

Retailer 4₹4,88,955 INR

Retailer 11₹5,03,238 INR

Retailer 6₹5,05,618 INR

Retailer 7₹5,07,450 INR

Retailer 16₹5,35,701 INR

Retailer 13₹5,45,623 INR

Retailer 20₹5,52,466 INR

Retailer 12₹5,64,340 INR

Retailer 14₹5,68,202 INR

Retailer 18₹6,16,683 INR

Retailer 8₹6,98,423 INR

Retailer 17₹8,59,082 INR

Retailer 19₹9,03,176 INR

NZ Jewellers₹9,63,626 INR

17 data points across 20 retailers

11 retailers

Retailer 1

₹4,24,148 INR

HK$34,800 HKD

Price last confirmed 31 days ago

Retailer 2

₹4,38,964 INR

$4,610 USD

View

Price last confirmed 30 days ago

Retailer 3

₹4,84,176 INR

€4,843 EUR

View

Price last confirmed 29 days ago

Retailer 4

₹5,05,618 INR

$5,310 USD

View

Price last confirmed 29 days ago

Retailer 5

₹5,45,623 INR

£4,512 GBP

View

Price last confirmed 29 days ago

Retailer 6

₹5,52,466 INR

$5,802 USD

View

Price last confirmed 31 days ago

Retailer 7

₹5,64,340 INR

A$9,118 AUD

View

Retailer 8

₹5,68,202 INR

A$9,180 AUD

View

Price last confirmed 29 days ago

B+

Retailer 9

₹6,98,423 INR

ZAR 118,495 ZAR

View

Price last confirmed 34 days ago

Retailer 10

₹9,03,176 INR

$9,485 USD

View

Price last confirmed 30 days ago

Most Expensive

NZ Jewellers

713935f0-ce7f-4697-ab11-385cbfb65944 · Sep 30

₹9,63,626 INR

$10,120 USD

View

Price last confirmed 28 days ago

10 more retailers have this diamond

Prices start from ₹5,64,340 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.

Similar diamonds

1.51ct Radiant

₹5,64,340 INR