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Radiant|Natural|GIA

1.51ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 3545914037

Certificate GIA 3545914037

Diamond specifications and retailer prices

From $4,172 NZD
As of November 5, 2026
Save $3,362 NZD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,535 NZD at Wholesale Diamonds Direct · As of November 6, 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 3545914037. Listed at 12 retailers as of November 5, 2026, with prices from $4,172 to $7,535, a $3,362 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,535. 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 3545914037
Dimensions7.44 × 5.89 × 3.96 mm
L/W Ratio1.26
Top View
7.44 mm5.89 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545914037
Side View
Table 69.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 67.3%

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: $4,820 NZD|Low: $4,149 NZD|High: $7,677 NZD|Avg: $5,600 NZD|-0.8%
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 7, 2026
Retailer 4$4,172 NZD
Retailer 8$4,430 NZD
Retailer 9$4,475 NZD
Retailer 7$4,506 NZD
Retailer 1$4,820 NZD
Retailer 3$4,908 NZD
Retailer 11$5,294 NZD
Retailer 2$5,511 NZD
Retailer 5$5,652 NZD
Retailer 6$5,792 NZD
Retailer 10$6,869 NZD
Wholesale Diamonds Direct$7,535 NZD

44 data points across 12 retailers

12 retailers$4,172 NZD to $7,535 NZD

A
Cheapest Retailer
-
$4,172 NZD
A
Retailer 2
-
$4,430 NZD
View
A
Retailer 3
-
$4,475 NZD
View
A
Retailer 4
-
$4,506 NZD
View
A
Retailer 5
-
$4,820 NZD
View
B+
Retailer 6
-
$4,908 NZD
View
B+
Retailer 7
-
$5,294 NZD
View
B+
Retailer 8
-
$5,511 NZD
View
A
Retailer 9
-
$5,652 NZD
View
A
Retailer 10
-
$5,792 NZD
View
B+
Retailer 11
-
$6,869 NZD
View
Most Expensive
B+
Wholesale Diamonds Direct
584156308 · Nov 6
$7,535 NZD
$4,177 USD
View
11 more retailers have this diamond
Prices start from $4,172 NZDSave up to $3,362 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
$4,172 NZD