Radiant|Natural|GIA

1.30ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 3145961771

Certificate GIA 3145961771

Diamond specifications and retailer prices

From $3,500 USD
As of November 4, 2026
Save $4,354 USD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,854 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3145961771. Listed at 16 retailers as of November 4, 2026, with prices from $3,500 to $7,854, a $4,354 spread on the same certified stone. NZ Jewellers lists it at $7,854. 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

1.30
Carat
K
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3145961771
Dimensions7.07 × 5.85 × 3.79 mm
L/W Ratio1.21
Top View
7.07 mm5.85 mm1.30 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3145961771
Side View
Table 70.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,854 USD|Low: $3,500 USD|High: $7,854 USD|Avg: $5,111 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6$3,500 USD
Retailer 7$4,084 USD
Retailer 8$4,084 USD
Retailer 9$4,084 USD
Retailer 2$4,567 USD
Retailer 3$4,795 USD
Retailer 4$5,500 USD
Retailer 5$7,161 USD
NZ Jewellers$7,854 USD

44 data points across 9 retailers

16 retailers$3,500 USD to $7,854 USD

B+
Cheapest Retailer
-
$3,500 USD
B+
Retailer 2
-
$3,552 USD
View
B+
Retailer 3
-
$3,593 USD
View
B
Retailer 4
-
$3,836 USD
View
B
Retailer 5
-
$3,890 USD
View
Retailer 6
-
$4,084 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$4,084 USD
View
B
Retailer 8
-
$4,084 USD
View
B
Retailer 9
-
$4,446 USD
View
B
Retailer 10
-
$4,567 USD
View
B
Retailer 11
-
$4,713 USD
View
B
Retailer 12
-
$4,795 USD
View
Retailer 13
-
$5,099 USD
View
Price last confirmed 15 days ago
C
Retailer 14
-
$5,500 USD
View
C
Retailer 15
-
$7,161 USD
View
Most Expensive
C
NZ Jewellers
83b19d72-471c-404d-b302-2a75dd820de4 · Nov 5
$7,854 USD
View
15 more retailers have this diamond
Prices start from $3,500 USDSave up to $4,354 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.

B+
1.30ct Radiant
$3,500 USD