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Round|Natural|GIA

0.51ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 2256287166

Certificate GIA 2256287166

Diamond specifications and retailer prices

From $457 SGD
As of November 1, 2026
Save $805 SGD (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,093 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 2256287166. Listed at 14 retailers as of November 1, 2026, with a 176% 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2256287166
Dimensions5.04 × 5.02 × 3.19 mm
L/W Ratio1.00
Top View
5.04 mm5.02 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2256287166
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.4%

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: $2,093 SGD|Low: $376 SGD|High: $2,093 SGD|Avg: $699 SGD|+21.9%
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$517 SGD
Retailer 16$547 SGD
Retailer 5$572 SGD
Retailer 2$580 SGD
Retailer 4$589 SGD
Retailer 6$589 SGD
Retailer 3$630 SGD
Retailer 12$630 SGD
Retailer 9$668 SGD
Retailer 14$713 SGD
Retailer 8$740 SGD
Retailer 13$746 SGD
Retailer 10$828 SGD
Retailer 11$1,262 SGD
NZ Jewellers$2,093 SGD

27 data points across 16 retailers

14 retailers$457 SGD to $1,262 SGD

B+
Cheapest Retailer
-
$457 SGD
B+
Retailer 2
-
$547 SGD
View
Retailer 3
-
$572 SGD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$580 SGD
View
Retailer 5
-
$589 SGD
View
Price last confirmed 9 days ago
Retailer 6
-
$589 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$630 SGD
View
B+
Retailer 8
-
$630 SGD
View
B+
Retailer 9
-
$668 SGD
View
B+
Retailer 10
-
$713 SGD
View
B+
Retailer 11
-
$746 SGD
View
B+
Retailer 12
-
$828 SGD
View
C
Retailer 13
-
$1,262 SGD
View
Most Expensive
NZ Jewellers
87419fe6-6aae-416c-bd98-9d0f1c3e7582 · Oct 30
$2,093 SGD
$1,639 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $457 SGDSave up to $805 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