Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 2221285699

Certificate GIA 2221285699

Diamond specifications and retailer prices

From $9,467 USD
A$14,564 AUD
As of October 29, 2026
Save $2,353 USD (20%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $11,820 USD at Zales · As of October 28, 2026
View at Zales

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2221285699. Listed at 6 retailers as of October 28, 2026, with prices from $9,467 to $11,820, a $2,353 spread on the same certified stone. Zales lists it at $11,820. 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

1.51
Carat
E
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2221285699
Dimensions7.30 × 5.84 × 4.00 mm
L/W Ratio1.25
Top View
7.30 mm5.84 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2221285699
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $11,715 USD|Low: $8,838 USD|High: $11,786 USD|Avg: $10,479 USD|+1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4$9,616 USD
Retailer 2$9,722 USD
Retailer 3$11,203 USD
Retailer 1$11,715 USD

35 data points across 4 retailers

6 retailers$9,467 USD to $11,820 USD

B
Cheapest Retailer
-
$9,467 USD
A$14,564 AUD
B
Retailer 2
-
$9,616 USD
View
B
Retailer 3
-
$9,722 USD
View
Final sale: no returns
B
Retailer 4
-
$11,203 USD
View
B
Retailer 5
-
$11,715 USD
£9,225 GBP
View
Most Expensive
B
Zales
517207766 · Oct 28
$11,820 USD
View
5 more retailers have this diamond
Prices start from $9,467 USDSave up to $2,353 USD

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
1.51ct Radiant
$9,467 USD