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Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

GD • D/SI1 • GIA 2528947522

Certificate GIA 2528947522

Diamond specifications and retailer prices

From $771 SGD
HK$4,700 HKD
As of October 29, 2026
Save $1,114 SGD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,907 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2528947522. Listed at 20 retailers as of October 29, 2026, with a 144% 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2528947522
Dimensions6.65 × 4.45 × 2.70 mm
L/W Ratio1.49
Top View
6.65 mm4.45 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2528947522
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,227 SGD|Low: $771 SGD|High: $1,886 SGD|Avg: $1,209 SGD|+17.4%
Retailer 1
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
October 29, 2026
Retailer 5$771 SGD
Retailer 9$781 SGD
Retailer 8$936 SGD
Retailer 16$945 SGD
Retailer 3$1,039 SGD
Retailer 6$1,082 SGD
Retailer 4$1,181 SGD
Retailer 14$1,194 SGD
Retailer 1$1,227 SGD
Retailer 15$1,237 SGD
Retailer 10$1,264 SGD
Retailer 2$1,380 SGD
Retailer 7$1,395 SGD
Retailer 12$1,447 SGD
Retailer 13$1,576 SGD
Retailer 11$1,886 SGD

35 data points across 16 retailers

20 retailers$771 SGD to $1,886 SGD

A
Cheapest Retailer
-
$771 SGD
HK$4,700 HKD
A
Retailer 2
-
$781 SGD
₹57,995 INR
View
B+
Retailer 3
-
$927 SGD
$723 USD
View
Price last confirmed 27 days ago
B+
Retailer 4
-
$936 SGD
$730 USD
View
Price last confirmed 31 days ago
B+
Retailer 5
-
$945 SGD
$737 USD
View
Final sale: no returns
B+
Retailer 6
-
$963 SGD
$751 USD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
$1,039 SGD
$810 USD
View
B+
Retailer 8
-
$1,069 SGD
$834 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$1,082 SGD
View
B
Retailer 10
-
$1,181 SGD
$921 USD
View
B
Retailer 11
-
$1,194 SGD
$931 USD
View
B
Retailer 12
-
$1,227 SGD
£754 GBP
View
B
Retailer 13
-
$1,237 SGD
$965 USD
View
B
Retailer 14
-
$1,264 SGD
£776 GBP
View
B
Retailer 15
-
$1,380 SGD
$1,076 USD
View
B
Retailer 16
-
$1,395 SGD
A$1,674 AUD
View
Price last confirmed 26 days ago
B
Retailer 17
-
$1,447 SGD
€1,075 EUR
View
B
Retailer 18
-
$1,576 SGD
ZAR 19,860 ZAR
View
B
Retailer 19
-
$1,886 SGD
£1,158 GBP
View
Most Expensive
C
NZ Jewellers
832d887b-63a4-4071-9fb7-a2c8f5ad3a4b · Sep 30
$2,907 SGD
$2,267 USD
View
Price last confirmed 28 days ago
19 more retailers have this diamond
Prices start from $771 SGDSave up to $1,114 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.

A
0.51ct Oval
$771 SGD