Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 2457221982

Certificate GIA 2457221982

Diamond specifications and retailer prices

From $2,800 USD
As of November 4, 2026
Save $3,146 USD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,212 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct 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 2457221982. Listed at 15 retailers as of November 4, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2457221982
Dimensions6.94 × 5.77 × 3.96 mm
L/W Ratio1.20
Top View
6.94 mm5.77 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2457221982
Side View
Table 72.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

Caratlytics Score

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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 4
Current: $3,689 USD|Low: $2,800 USD|High: $6,035 USD|Avg: $3,824 USD|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6$2,800 USD
Retailer 7$2,857 USD
Retailer 4$2,867 USD
Retailer 9$3,130 USD
Retailer 8$3,230 USD
Retailer 1$3,689 USD
Retailer 2$4,110 USD
Retailer 3$4,352 USD
Retailer 5$5,946 USD

45 data points across 9 retailers

15 retailers$2,800 USD to $5,946 USD

A
Cheapest Retailer
-
$2,800 USD
A
Retailer 2
-
$2,857 USD
View
B+
Retailer 3
-
$2,867 USD
View
B+
Retailer 4
-
$3,130 USD
View
B+
Retailer 5
-
$3,225 USD
View
Retailer 6
-
$3,230 USD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$3,247 USD
View
Retailer 8
-
$3,354 USD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$3,689 USD
View
Retailer 10
-
$3,727 USD
View
Price last confirmed 39 days ago
Retailer 11
-
$4,039 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$4,110 USD
View
B+
Retailer 13
-
$4,352 USD
View
B
Retailer 14
-
$5,946 USD
View
Most Expensive
NZ Jewellers
cd4b2a51-ffbe-426e-9469-13044b3e8e67 · Sep 30
$6,212 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from $2,800 USDSave up to $3,146 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
1.50ct Radiant
$2,800 USD