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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 5556481538

Certificate GIA 5556481538

Diamond specifications and retailer prices

From $8,889 NZD
$5,010 USD
As of October 30, 2026
Save $7,327 NZD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $16,216 NZD at Wholesale Diamonds Direct · As of October 27, 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 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 5556481538. Listed at 10 retailers as of October 27, 2026, with prices from $8,889 to $16,216, a $7,327 spread on the same certified stone. Wholesale Diamonds Direct lists it at $16,216. 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
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556481538
Dimensions7.50 × 5.93 × 4.08 mm
L/W Ratio1.26
Culet sizeNone
Top View
7.50 mm5.93 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556481538
Side View
Table 69.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $12,259 NZD|Low: $8,889 NZD|High: $16,216 NZD|Avg: $11,175 NZD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 31, 2026
Retailer 9$8,889 NZD
Retailer 4$9,002 NZD
Retailer 8$9,359 NZD
Retailer 7$9,644 NZD
Retailer 2$9,895 NZD
Retailer 5$10,994 NZD
Retailer 3$11,377 NZD
Retailer 1$12,259 NZD
Retailer 6$14,604 NZD
Wholesale Diamonds Direct$16,216 NZD

46 data points across 10 retailers

10 retailers$8,889 NZD to $16,216 NZD

A
Cheapest Retailer
-
$8,889 NZD
$5,010 USD
A
Retailer 2
-
$9,002 NZD
SGD 6,856 SGD
View
A
Retailer 3
-
$9,359 NZD
$5,275 USD
View
A
Retailer 4
-
$9,644 NZD
SGD 7,345 SGD
View
A
Retailer 5
-
$9,895 NZD
£4,391 GBP
View
A
Retailer 6
-
$10,994 NZD
$6,196 USD
View
A
Retailer 7
-
$11,377 NZD
€6,107 EUR
View
B+
Retailer 8
-
$12,259 NZD
$6,909 USD
View
B+
Retailer 9
-
$14,902 NZD
$8,399 USD
View
Most Expensive
B
Wholesale Diamonds Direct
471310083 · Oct 27
$16,216 NZD
$9,139 USD
View
9 more retailers have this diamond
Prices start from $8,889 NZDSave up to $7,327 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
$8,889 NZD