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Radiant|Natural|GIA

1.30ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 3145961771

Certificate GIA 3145961771

Diamond specifications and retailer prices

From $4,486 SGD
As of November 4, 2026
Save $5,580 SGD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,066 SGD 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 $4,486 to $10,066, a $5,580 spread on the same certified stone. NZ Jewellers lists it at $10,066. 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
Colour
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: $10,066 SGD|Low: $4,486 SGD|High: $10,066 SGD|Avg: $6,550 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6$4,486 SGD
Retailer 7$5,234 SGD
Retailer 8$5,234 SGD
Retailer 9$5,234 SGD
Retailer 2$5,853 SGD
Retailer 3$6,145 SGD
Retailer 4$7,049 SGD
Retailer 5$9,178 SGD
NZ Jewellers$10,066 SGD

44 data points across 9 retailers

16 retailers$4,486 SGD to $10,066 SGD

B+
Cheapest Retailer
-
$4,486 SGD
B+
Retailer 2
-
$4,552 SGD
View
B+
Retailer 3
-
$4,605 SGD
View
B
Retailer 4
-
$4,916 SGD
View
B
Retailer 5
-
$4,985 SGD
View
Retailer 6
-
$5,234 SGD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$5,234 SGD
View
B
Retailer 8
-
$5,234 SGD
View
B
Retailer 9
-
$5,698 SGD
View
B
Retailer 10
-
$5,853 SGD
View
B
Retailer 11
-
$6,040 SGD
View
B
Retailer 12
-
$6,145 SGD
View
Retailer 13
-
$6,535 SGD
View
Price last confirmed 15 days ago
C
Retailer 14
-
$7,049 SGD
View
C
Retailer 15
-
$9,178 SGD
View
Most Expensive
C
NZ Jewellers
83b19d72-471c-404d-b302-2a75dd820de4 · Nov 5
$10,066 SGD
$7,854 USD
View
15 more retailers have this diamond
Prices start from $4,486 SGDSave up to $5,580 SGD

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
$4,486 SGD