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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 $3,972 NZD
As of November 5, 2026
Save $3,226 NZD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,198 NZD 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 $3,972 to $7,198, a $3,226 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,198. 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: $3,972 NZD|Low: $3,952 NZD|High: $7,336 NZD|Avg: $5,303 NZD|-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$3,972 NZD
Retailer 7$4,219 NZD
Retailer 8$4,266 NZD
Retailer 6$4,291 NZD
Retailer 4$4,593 NZD
Retailer 2$4,672 NZD
Retailer 10$5,055 NZD
Retailer 11$5,287 NZD
Retailer 5$5,383 NZD
Retailer 3$5,623 NZD
Retailer 9$6,543 NZD
Wholesale Diamonds Direct$7,198 NZD

43 data points across 12 retailers

11 retailers$3,972 NZD to $7,198 NZD

A
Cheapest Retailer
-
$3,972 NZD
A
Retailer 2
-
$4,219 NZD
View
A
Retailer 3
-
$4,266 NZD
View
A
Retailer 4
-
$4,291 NZD
View
A
Retailer 5
-
$4,593 NZD
View
A
Retailer 6
-
$4,672 NZD
View
B+
Retailer 7
-
$5,055 NZD
View
B+
Retailer 8
-
$5,287 NZD
View
A
Retailer 9
-
$5,383 NZD
View
B+
Retailer 10
-
$6,543 NZD
View
Most Expensive
B+
Wholesale Diamonds Direct
584156285 · Nov 4
$7,198 NZD
$3,990 USD
View
10 more retailers have this diamond
Prices start from $3,972 NZDSave up to $3,226 NZD

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
$3,972 NZD