Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

EX • E/SI2 • GIA 6551551304

Certificate GIA 6551551304

Diamond specifications and retailer prices

From €3,632 EUR

HK$31,700 HKD

As of October 30, 2026

Save €4,610 EUR (56%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: €8,242 EUR at Queensmith · As of October 28, 2026

View at Queensmith

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551551304. Listed at 17 retailers as of October 28, 2026, with prices from €3,632 to €8,242, a €4,610 spread on the same certified stone. Queensmith lists it at €8,242. 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

SI2

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 6551551304

Dimensions7.68 × 5.89 × 4.08 mm

L/W Ratio1.30

Girdle conditionPolished

Culet sizeNone

Key to symbols

Cloud, Feather, Crystal, Knot, Cavity, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 6551551304

Side View

Caratlytics Score

How it works →

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 30

Current: €8,242 EUR|Low: €3,632 EUR|High: €8,276 EUR|Avg: €5,142 EUR|+2.4%

Queensmith

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

October 30, 2026

Retailer 3€3,632 EUR

Retailer 2€3,933 EUR

Retailer 8€4,293 EUR

Retailer 10€4,463 EUR

Retailer 9€4,517 EUR

Retailer 4€4,666 EUR

Retailer 5€4,775 EUR

Retailer 12€4,894 EUR

Retailer 11€5,032 EUR

Retailer 7€5,531 EUR

Retailer 6€7,837 EUR

Queensmith€8,242 EUR

33 data points across 12 retailers

17 retailers€3,632 EUR to €8,242 EUR

Cheapest Retailer

€3,632 EUR

HK$31,700 HKD

Retailer 2

€3,933 EUR

₹418,518 INR

View

Retailer 3

€4,293 EUR

SGD 6,481 SGD

View

Retailer 4

€4,463 EUR

$4,986 USD

View

Retailer 5

€4,517 EUR

$5,046 USD

View

Final sale: no returns

Retailer 6

€4,666 EUR

SGD 7,045 SGD

View

Retailer 7

€4,775 EUR

£4,200 GBP

View

Retailer 8

€4,894 EUR

$5,468 USD

View

Price last confirmed 22 days ago

Retailer 9

€4,894 EUR

$5,468 USD

View

Price last confirmed 29 days ago

Retailer 10

€4,894 EUR

$5,468 USD

View

Price last confirmed 22 days ago

Retailer 11

€5,032 EUR

$5,621 USD

View

Retailer 12

€5,066 EUR

A$8,708 AUD

View

Retailer 13

€5,531 EUR

View

Retailer 14

€5,647 EUR

$6,309 USD

View

Price last confirmed 21 days ago

B+

Retailer 15

€7,837 EUR

£6,894 GBP

View

Retailer 16

€8,186 EUR

$9,145 USD

View

Price last confirmed 30 days ago

Most Expensive

Queensmith

6551551304 · Oct 28

€8,242 EUR

£7,250 GBP

View

16 more retailers have this diamond

Prices start from €3,632 EURSave up to €4,610 EUR

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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