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Radiant|Natural|GIA

1.51ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 3545587837

Certificate GIA 3545587837

Diamond specifications and retailer prices

From $3,205 AUD
As of November 5, 2026
Save $2,603 AUD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,808 AUD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3545587837. Listed at 11 retailers as of November 4, 2026, with prices from $3,205 to $5,808, a $2,603 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,808. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545587837
Dimensions7.48 × 5.93 × 4.08 mm
L/W Ratio1.26
Top View
7.48 mm5.93 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545587837
Side View
Table 68.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
A
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: Nov 5
Current: $3,205 AUD|Low: $3,189 AUD|High: $5,919 AUD|Avg: $4,278 AUD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$3,205 AUD
Retailer 7$3,404 AUD
Retailer 8$3,442 AUD
Retailer 6$3,462 AUD
Retailer 4$3,705 AUD
Retailer 2$3,769 AUD
Retailer 10$4,078 AUD
Retailer 11$4,266 AUD
Retailer 5$4,343 AUD
Retailer 3$4,536 AUD
Retailer 9$5,279 AUD
Wholesale Diamonds Direct$5,808 AUD

43 data points across 12 retailers

11 retailers$3,205 AUD to $5,808 AUD

A
Cheapest Retailer
-
$3,205 AUD
A
Retailer 2
-
$3,404 AUD
View
A
Retailer 3
-
$3,442 AUD
View
A
Retailer 4
-
$3,462 AUD
View
A
Retailer 5
-
$3,705 AUD
View
A
Retailer 6
-
$3,769 AUD
View
B+
Retailer 7
-
$4,078 AUD
View
B+
Retailer 8
-
$4,266 AUD
View
A
Retailer 9
-
$4,343 AUD
View
B+
Retailer 10
-
$5,279 AUD
View
Most Expensive
B+
Wholesale Diamonds Direct
584156285 · Nov 4
$5,808 AUD
$3,990 USD
View
10 more retailers have this diamond
Prices start from $3,205 AUDSave up to $2,603 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.

A
1.51ct Radiant
$3,205 AUD