Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 5513838565

Certificate GIA 5513838565

Diamond specifications and retailer prices

From $873 SGD
$683 USD
As of October 25, 2026
Save $893 SGD (51%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,835 SGD at NZ Jewellers · As of September 24, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5513838565. Listed at 22 retailers as of October 25, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5513838565
Dimensions6.79 × 4.38 × 2.76 mm
L/W Ratio1.55
Top View
6.79 mm4.38 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5513838565
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $1,106 SGD|Low: $630 SGD|High: $2,114 SGD|Avg: $1,114 SGD|+29.1%
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 25, 2026
Retailer 5$757 SGD
Retailer 15$812 SGD
Retailer 13$857 SGD
Retailer 9$873 SGD
Retailer 4$1,010 SGD
Retailer 7$1,010 SGD
Retailer 3$1,011 SGD
Retailer 2$1,024 SGD
Retailer 6$1,048 SGD
Retailer 11$1,097 SGD
Retailer 1$1,106 SGD
Retailer 10$1,184 SGD
Retailer 14$1,227 SGD
Retailer 8$1,360 SGD
Retailer 16$1,485 SGD
Retailer 12$1,766 SGD

36 data points across 16 retailers

22 retailers$873 SGD to $1,766 SGD

Retailer 1
-
$802 SGD
$627 USD
Price last confirmed 19 days ago
Retailer 2
-
$812 SGD
$635 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$819 SGD
$641 USD
View
Price last confirmed 37 days ago
Retailer 4
-
$857 SGD
$670 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$863 SGD
$675 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$873 SGD
$683 USD
View
Retailer 7
-
$882 SGD
$690 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$945 SGD
$739 USD
View
Price last confirmed 38 days ago
Retailer 9
-
$1,010 SGD
$790 USD
View
Price last confirmed 9 days ago
Retailer 10
-
$1,010 SGD
$790 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$1,011 SGD
$791 USD
View
Retailer 12
-
$1,024 SGD
$801 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$1,048 SGD
$820 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$1,097 SGD
£676 GBP
View
Retailer 15
-
$1,106 SGD
$865 USD
View
Price last confirmed 6 days ago
B+
Retailer 16
-
$1,184 SGD
£729 GBP
View
Retailer 17
-
$1,227 SGD
€914 EUR
View
Price last confirmed 8 days ago
Retailer 18
-
$1,360 SGD
A$1,637 AUD
View
Price last confirmed 27 days ago
Retailer 19
-
$1,485 SGD
ZAR 18,765 ZAR
View
Price last confirmed 15 days ago
B
Retailer 20
-
$1,766 SGD
£1,088 GBP
View
Retailer 21
-
$2,774 SGD
$2,170 USD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
3c4b9d2d-e3e9-4b11-b453-b825d03f9e27 · Sep 24
$2,835 SGD
$2,218 USD
View
Price last confirmed 37 days ago
21 more retailers have this diamond
Prices start from $873 SGDSave up to $893 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
$873 SGD