Radiant|Natural|GIA

1.51ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 3545914037

Certificate GIA 3545914037

Diamond specifications and retailer prices

From $2,313 USD
As of November 5, 2026
Save $1,864 USD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,177 USD 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 $2,313 to $4,177, a $1,864 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,177. 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
Color
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: $2,672 USD|Low: $2,300 USD|High: $4,256 USD|Avg: $3,104 USD|-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$2,313 USD
Retailer 8$2,456 USD
Retailer 9$2,481 USD
Retailer 7$2,498 USD
Retailer 1$2,672 USD
Retailer 3$2,721 USD
Retailer 11$2,935 USD
Retailer 2$3,055 USD
Retailer 5$3,133 USD
Retailer 6$3,211 USD
Retailer 10$3,808 USD
Wholesale Diamonds Direct$4,177 USD

44 data points across 12 retailers

12 retailers$2,313 USD to $4,177 USD

A
Cheapest Retailer
-
$2,313 USD
A
Retailer 2
-
$2,456 USD
View
A
Retailer 3
-
$2,481 USD
View
A
Retailer 4
-
$2,498 USD
View
A
Retailer 5
-
$2,672 USD
View
B+
Retailer 6
-
$2,721 USD
View
B+
Retailer 7
-
$2,935 USD
View
B+
Retailer 8
-
$3,055 USD
View
A
Retailer 9
-
$3,133 USD
View
A
Retailer 10
-
$3,211 USD
View
B+
Retailer 11
-
$3,808 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
584156308 · Nov 6
$4,177 USD
View
11 more retailers have this diamond
Prices start from $2,313 USDSave up to $1,864 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
$2,313 USD