Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1435831747

Certificate GIA 1435831747

Diamond specifications and retailer prices

From €2,596 EUR

$2,900 USD

As of October 30, 2026

Save €3,784 EUR (59%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: €6,380 EUR at Diamond Quarter · As of October 29, 2026

View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1435831747. Listed at 27 retailers as of October 29, 2026, with prices from €2,596 to €6,380, a €3,784 spread on the same certified stone. Diamond Quarter lists it at €6,380. 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

1.00

Carat

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceMedium

Crown angle33°

Pavilion angle40.8°

OriginNatural

Grading LabGIA

CertificateGIA 1435831747

Dimensions6.55 × 6.47 × 3.82 mm

L/W Ratio1.01

Star length50%

Lower girdle75%

Key to symbols

Crystal, Feather, Cavity, Needle, Natural

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceMedium

CertificateGIA 1435831747

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 30

Current: €4,247 EUR|Low: €2,402 EUR|High: €6,019 EUR|Avg: €3,543 EUR|+6.2%

Retailer 1

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Retailer 24

October 31, 2026

Retailer 5€2,596 EUR

Retailer 6€2,655 EUR

Retailer 24€2,739 EUR

Retailer 11€2,778 EUR

Retailer 16€2,837 EUR

Retailer 13€2,888 EUR

Retailer 7€3,012 EUR

Retailer 3€3,130 EUR

Retailer 8€3,130 EUR

Retailer 4€3,250 EUR

Retailer 2€3,404 EUR

Retailer 12€3,512 EUR

Retailer 17€3,562 EUR

Retailer 10€3,612 EUR

Retailer 20€3,616 EUR

Retailer 21€3,616 EUR

Retailer 14€3,717 EUR

Retailer 22€3,733 EUR

Retailer 18€3,812 EUR

Retailer 15€3,912 EUR

Retailer 23€3,984 EUR

Retailer 1€4,247 EUR

Retailer 19€5,809 EUR

Retailer 9€6,019 EUR

37 data points across 24 retailers

27 retailers€2,596 EUR to €6,380 EUR

Cheapest Retailer

€2,596 EUR

$2,900 USD

Retailer 2

€2,655 EUR

$2,966 USD

View

Retailer 3

€2,739 EUR

$3,060 USD

View

Price last confirmed 10 days ago

B+

Retailer 4

€2,778 EUR

$3,104 USD

View

B+

Retailer 5

€2,837 EUR

$3,169 USD

View

B+

Retailer 6

€2,876 EUR

A$4,943 AUD

View

B+

Retailer 7

€2,888 EUR

$3,227 USD

View

Final sale: no returns

B+

Retailer 8

€3,012 EUR

$3,365 USD

View

Retailer 9

€3,130 EUR

$3,497 USD

View

Price last confirmed 9 days ago

Retailer 10

€3,130 EUR

$3,497 USD

View

Price last confirmed 7 days ago

Retailer 11

€3,250 EUR

$3,631 USD

View

Price last confirmed 9 days ago

Retailer 12

€3,275 EUR

$3,659 USD

View

Price last confirmed 19 days ago

B+

Retailer 13

€3,404 EUR

$3,803 USD

View

B+

Retailer 14

€3,512 EUR

£3,090 GBP

View

Retailer 15

€3,562 EUR

A$6,122 AUD

View

Price last confirmed 22 days ago

Retailer 16

€3,612 EUR

$4,035 USD

View

Price last confirmed 8 days ago

Retailer 17

€3,616 EUR

$4,040 USD

View

Retailer 18

€3,616 EUR

$4,040 USD

View

B+

Retailer 19

€3,717 EUR

$4,153 USD

View

B+

Retailer 20

€3,733 EUR

$4,170 USD

View

B+

Retailer 21

€3,812 EUR

View

Retailer 22

€3,912 EUR

$4,370 USD

View

Price last confirmed 8 days ago

B+

Retailer 23

€3,984 EUR

£3,505 GBP

View

Retailer 24

€4,247 EUR

ZAR 76,651 ZAR

View

Retailer 25

€5,809 EUR

£5,110 GBP

View

Retailer 26

€6,019 EUR

$6,725 USD

View

Price last confirmed 8 days ago

Most Expensive

Diamond Quarter

1.0SI1D1447F491N · Oct 29

€6,380 EUR

£5,612 GBP

View

26 more retailers have this diamond

Prices start from €2,596 EURSave up to €3,784 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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