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Radiant|Natural|GIA

1.51ct K SI2 Radiant Natural Diamond

VG • K/SI2 • GIA 6505379824

Certificate GIA 6505379824

Diamond specifications and retailer prices

From $5,566 SGD
As of November 6, 2026
Save $6,457 SGD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,023 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6505379824. Listed at 16 retailers as of November 5, 2026, with prices from $5,566 to $12,023, a $6,457 spread on the same certified stone. NZ Jewellers lists it at $12,023. 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
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle56.7°
OriginNatural
Grading LabGIA
CertificateGIA 6505379824
Dimensions8.21 × 5.73 × 3.89 mm
L/W Ratio1.43
Top View
8.21 mm5.73 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505379824
Side View
Table 70.0%Crown 46°Girdle: ThickPavilion 56.7°Culet: NoneDepth 67.9%

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 6
Current: $12,023 SGD|Low: $5,566 SGD|High: $12,023 SGD|Avg: $7,484 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 16$5,566 SGD
Retailer 3$5,680 SGD
Retailer 8$5,710 SGD
Retailer 14$5,749 SGD
Retailer 4$6,062 SGD
Retailer 5$6,513 SGD
Retailer 6$6,513 SGD
Retailer 7$6,513 SGD
Retailer 2$6,944 SGD
Retailer 10$6,980 SGD
Retailer 9$7,163 SGD
Retailer 15$7,514 SGD
Retailer 11$8,089 SGD
Retailer 13$10,410 SGD
Retailer 12$11,419 SGD
NZ Jewellers$12,023 SGD

36 data points across 16 retailers

16 retailers$5,566 SGD to $12,023 SGD

B+
Cheapest Retailer
-
$5,566 SGD
B+
Retailer 2
-
$5,680 SGD
View
Retailer 3
-
$5,710 SGD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$5,749 SGD
View
B
Retailer 5
-
$6,062 SGD
View
Retailer 6
-
$6,513 SGD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$6,513 SGD
View
B
Retailer 8
-
$6,513 SGD
View
B
Retailer 9
-
$6,944 SGD
View
B
Retailer 10
-
$6,980 SGD
View
B
Retailer 11
-
$7,163 SGD
View
B
Retailer 12
-
$7,514 SGD
View
B
Retailer 13
-
$8,089 SGD
View
C
Retailer 14
-
$10,410 SGD
View
C
Retailer 15
-
$11,419 SGD
View
Most Expensive
C
NZ Jewellers
17d9eeda-530a-4a6b-a860-8d667072c6b2 · Nov 5
$12,023 SGD
$9,381 USD
View
15 more retailers have this diamond
Prices start from $5,566 SGDSave up to $6,457 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+
1.51ct Radiant
$5,566 SGD