Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 1309792916

Certificate GIA 1309792916

Diamond specifications and retailer prices

From €1,689 EUR

HK$14,800 HKD

As of November 1, 2026

Save €2,287 EUR (58%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: €3,976 EUR at MOH London · As of November 2, 2026

View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1309792916. Listed at 14 retailers as of November 1, 2026, with prices from €1,689 to €3,976, a €2,287 spread on the same certified stone. MOH London lists it at €3,976. 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

1.21

Carat

Color

SI1

Clarity

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryVery Good

FluorescenceStrong

OriginNatural

Grading LabGIA

CertificateGIA 1309792916

Dimensions6.26 × 5.49 × 3.94 mm

L/W Ratio1.14

Key to symbols

Feather, Twinning Wisp, Indented Natural, Natural

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryVery Good

FluorescenceStrong

CertificateGIA 1309792916

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: Nov 1

Current: €3,976 EUR|Low: €1,678 EUR|High: €4,019 EUR|Avg: €2,448 EUR|-0.9%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

November 2, 2026

Retailer 8€1,689 EUR

Retailer 10€2,051 EUR

Retailer 11€2,093 EUR

Retailer 3€2,127 EUR

Retailer 2€2,213 EUR

Retailer 12€2,269 EUR

Retailer 7€2,425 EUR

Retailer 4€2,453 EUR

Retailer 5€2,470 EUR

Retailer 13€2,543 EUR

Retailer 9€2,789 EUR

Retailer 6€2,833 EUR

MOH London€3,976 EUR

27 data points across 13 retailers

14 retailers€1,689 EUR to €3,976 EUR

Cheapest Retailer

€1,689 EUR

HK$14,800 HKD

B+

Retailer 2

€2,050 EUR

$2,299 USD

View

B+

Retailer 3

€2,051 EUR

$2,300 USD

View

B+

Retailer 4

€2,093 EUR

$2,348 USD

View

Final sale: no returns

B+

Retailer 5

€2,127 EUR

$2,386 USD

View

B+

Retailer 6

€2,213 EUR

£1,955 GBP

View

Retailer 7

€2,269 EUR

$2,545 USD

View

Price last confirmed 25 days ago

B+

Retailer 8

€2,348 EUR

SGD 3,559 SGD

View

B+

Retailer 9

€2,425 EUR

£2,142 GBP

View

B+

Retailer 10

€2,470 EUR

$2,770 USD

View

Retailer 11

€2,543 EUR

A$4,387 AUD

View

Price last confirmed 25 days ago

Retailer 12

€2,789 EUR

ZAR 50,542 ZAR

View

Retailer 13

€2,833 EUR

View

Most Expensive

MOH London

BFA899C27 · Nov 2

€3,976 EUR

£3,511 GBP

View

13 more retailers have this diamond

Prices start from €1,689 EURSave up to €2,287 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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