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Radiant|Natural|GIA

1.21ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 6552938549

Certificate GIA 6552938549

Diamond specifications and retailer prices

From $4,977 AUD
As of November 5, 2026
Save $160 AUD (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,138 AUD at Jared · As of November 6, 2026
View at Jared

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552938549. Listed at 3 retailers as of November 6, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.21
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle52.62°
Pavilion angle37.82°
OriginNatural
Grading LabGIA
CertificateGIA 6552938549
Dimensions7.44 × 5.12 × 3.46 mm
L/W Ratio1.45
Girdle conditionPolished
Key to symbols
Twinning Wisp, Feather
Top View
7.44 mm5.12 mm1.21 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552938549
Side View
Table 68.0%Crown 52.62°Girdle: THK-VTKPavilion 37.82°Culet: NoneDepth 67.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $5,138 AUD|Low: $3,483 AUD|High: $5,138 AUD|Avg: $4,411 AUD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 11, 2026
Retailer 6$3,483 AUD
Retailer 5$4,609 AUD
Retailer 4$4,670 AUD
Retailer 2$4,977 AUD
Retailer 3$4,977 AUD
Jared$5,138 AUD

5 data points across 6 retailers

3 retailers$4,977 AUD to $5,138 AUD

B
Cheapest Retailer
-
$4,977 AUD
B
Retailer 2
-
$4,977 AUD
View
Most Expensive
B
Jared
159836677 · Nov 6
$5,138 AUD
$3,530 USD
View
2 more retailers have this diamond
Prices start from $4,977 AUDSave up to $160 AUD

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.

B
1.21ct Radiant
$4,977 AUD