Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 5556481538

Certificate GIA 5556481538

Diamond specifications and retailer prices

From $5,010 USD
As of October 29, 2026
Save $4,129 USD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,139 USD 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 $5,010 to $9,139, a $4,129 spread on the same certified stone. Wholesale Diamonds Direct lists it at $9,139. 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
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,909 USD|Low: $5,010 USD|High: $9,139 USD|Avg: $6,334 USD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 30, 2026
Retailer 9$5,010 USD
Retailer 4$5,073 USD
Retailer 8$5,275 USD
Retailer 7$5,435 USD
Retailer 2$5,623 USD
Retailer 5$6,196 USD
Retailer 3$6,431 USD
Retailer 1$6,909 USD
Retailer 6$8,231 USD
Wholesale Diamonds Direct$9,139 USD

46 data points across 10 retailers

10 retailers$5,010 USD to $9,139 USD

A
Cheapest Retailer
-
$5,010 USD
A
Retailer 2
-
$5,073 USD
SGD 6,856 SGD
View
A
Retailer 3
-
$5,275 USD
View
A
Retailer 4
-
$5,435 USD
SGD 7,345 SGD
View
A
Retailer 5
-
$5,623 USD
£4,428 GBP
View
A
Retailer 6
-
$6,196 USD
View
A
Retailer 7
-
$6,431 USD
€6,125 EUR
View
B+
Retailer 8
-
$6,909 USD
View
B+
Retailer 9
-
$8,399 USD
View
Most Expensive
B
Wholesale Diamonds Direct
471310083 · Oct 27
$9,139 USD
View
9 more retailers have this diamond
Prices start from $5,010 USDSave up to $4,129 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.

A
1.51ct Radiant
$5,010 USD