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Round|Natural|GIA

0.51ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 1345916805

Certificate GIA 1345916805

Diamond specifications and retailer prices

From $457 SGD
As of November 1, 2026
Save $811 SGD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,105 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1345916805. Listed at 15 retailers as of November 1, 2026, with a 177% 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

0.51
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1345916805
Dimensions5.21 × 5.14 × 3.08 mm
L/W Ratio1.01
Key to symbols
Crystal
Top View
5.21 mm5.14 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1345916805
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.6%

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 1
Current: $2,105 SGD|Low: $376 SGD|High: $2,105 SGD|Avg: $702 SGD|+21.8%
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 2, 2026
Retailer 15$457 SGD
Retailer 7$520 SGD
Retailer 16$549 SGD
Retailer 5$574 SGD
Retailer 2$582 SGD
Retailer 4$591 SGD
Retailer 6$591 SGD
Retailer 3$634 SGD
Retailer 12$634 SGD
Retailer 9$677 SGD
Retailer 14$715 SGD
Retailer 8$745 SGD
Retailer 13$748 SGD
Retailer 10$832 SGD
Retailer 11$1,268 SGD
NZ Jewellers$2,105 SGD

27 data points across 16 retailers

15 retailers$457 SGD to $1,268 SGD

Retailer 1
-
$451 SGD
Price last confirmed 28 days ago
B+
Retailer 2
-
$457 SGD
View
B+
Retailer 3
-
$549 SGD
View
Retailer 4
-
$574 SGD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$582 SGD
View
Retailer 6
-
$591 SGD
View
Price last confirmed 8 days ago
Retailer 7
-
$591 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$634 SGD
View
B+
Retailer 9
-
$634 SGD
View
B+
Retailer 10
-
$677 SGD
View
B+
Retailer 11
-
$715 SGD
View
B
Retailer 12
-
$748 SGD
View
B
Retailer 13
-
$832 SGD
View
C
Retailer 14
-
$1,268 SGD
View
Most Expensive
NZ Jewellers
366aec03-384d-4eb6-83a4-9caa37969dae · Oct 30
$2,105 SGD
$1,648 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from $457 SGDSave up to $811 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+
0.51ct Round
$457 SGD