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Radiant|Natural|GIA

1.51ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 5416106145

Certificate GIA 5416106145

Diamond specifications and retailer prices

From $7,488 SGD
As of November 6, 2026
Save $9,361 SGD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $16,849 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5416106145. Listed at 18 retailers as of November 5, 2026, with prices from $7,488 to $16,849, a $9,361 spread on the same certified stone. NZ Jewellers lists it at $16,849. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5416106145
Dimensions7.37 × 5.79 × 3.95 mm
L/W Ratio1.27
Top View
7.37 mm5.79 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5416106145
Side View
Table 64.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $16,849 SGD|Low: $7,488 SGD|High: $16,849 SGD|Avg: $10,538 SGD
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 10$7,488 SGD
Retailer 8$7,600 SGD
Retailer 3$8,424 SGD
Retailer 11$9,126 SGD
Retailer 9$9,267 SGD
Retailer 2$9,404 SGD
Retailer 4$9,767 SGD
Retailer 5$10,375 SGD
Retailer 6$12,291 SGD
Retailer 7$14,001 SGD
NZ Jewellers$16,849 SGD

45 data points across 11 retailers

18 retailers$7,488 SGD to $16,849 SGD

B
Cheapest Retailer
-
$7,488 SGD
Retailer 2
-
$7,600 SGD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$7,802 SGD
View
B
Retailer 4
-
$7,959 SGD
View
B
Retailer 5
-
$8,069 SGD
View
Retailer 6
-
$8,424 SGD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$8,446 SGD
View
B
Retailer 8
-
$8,494 SGD
View
B
Retailer 9
-
$9,126 SGD
View
B
Retailer 10
-
$9,267 SGD
View
B
Retailer 11
-
$9,404 SGD
View
C
Retailer 12
-
$9,630 SGD
View
C
Retailer 13
-
$9,767 SGD
View
B
Retailer 14
-
$10,375 SGD
View
C
Retailer 15
-
$10,531 SGD
View
C
Retailer 16
-
$12,291 SGD
View
C
Retailer 17
-
$14,001 SGD
View
Most Expensive
C
NZ Jewellers
3ad37f3d-6cfa-4792-824f-277fad820cb8 · Nov 5
$16,849 SGD
$13,147 USD
View
17 more retailers have this diamond
Prices start from $7,488 SGDSave up to $9,361 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
$7,488 SGD