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Radiant|Natural|GIA

0.65ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 1518787226

Certificate GIA 1518787226

Diamond specifications and retailer prices

From $711 SGD
As of November 4, 2026
Save $920 SGD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,334 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.65ct natural radiant diamond

This 0.65ct natural radiant sits in the half to three-quarter 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 1518787226. Listed at 21 retailers as of November 5, 2026, with a 129% 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

0.65
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1518787226
Dimensions6.32 × 4.35 × 2.75 mm
L/W Ratio1.45
Culet sizeNone
Top View
6.32 mm4.35 mm0.65 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518787226
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.2%

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: $2,229 SGD|Low: $647 SGD|High: $2,229 SGD|Avg: $1,021 SGD|+3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7$711 SGD
Retailer 3$765 SGD
Retailer 9$820 SGD
Retailer 11$879 SGD
Retailer 4$888 SGD
Retailer 8$895 SGD
Retailer 10$961 SGD
Retailer 5$1,051 SGD
Retailer 6$1,060 SGD
Retailer 2$1,631 SGD
NZ Jewellers$2,229 SGD

40 data points across 11 retailers

21 retailers$711 SGD to $1,631 SGD

Retailer 1
-
$609 SGD
Price last confirmed 43 days ago
Retailer 2
-
$695 SGD
View
Price last confirmed 37 days ago
Retailer 3
-
$702 SGD
View
Price last confirmed 44 days ago
B+
Retailer 4
-
$711 SGD
View
B+
Retailer 5
-
$711 SGD
View
Retailer 6
-
$747 SGD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$765 SGD
View
Retailer 8
-
$765 SGD
View
Price last confirmed 9 days ago
Retailer 9
-
$765 SGD
View
Price last confirmed 13 days ago
Retailer 10
-
$801 SGD
View
Price last confirmed 39 days ago
B+
Retailer 11
-
$820 SGD
View
B+
Retailer 12
-
$879 SGD
View
B+
Retailer 13
-
$888 SGD
View
B+
Retailer 14
-
$895 SGD
View
B+
Retailer 15
-
$961 SGD
View
B
Retailer 16
-
$1,051 SGD
View
B
Retailer 17
-
$1,060 SGD
View
B
Retailer 18
-
$1,631 SGD
View
Retailer 19
-
$2,177 SGD
View
Price last confirmed 39 days ago
Retailer 20
-
$2,229 SGD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
9dc54b5b-35d9-4f20-a801-64018de16dec · Sep 25
$2,334 SGD
$1,821 USD
View
Price last confirmed 42 days ago
20 more retailers have this diamond
Prices start from $711 SGDSave up to $920 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+
0.65ct Radiant
$711 SGD