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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6515090345

Certificate GIA 6515090345

Diamond specifications and retailer prices

From $1,054 SGD
$824 USD
As of November 2, 2026
Save $1,267 SGD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,321 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515090345. Listed at 21 retailers as of October 29, 2026, with prices from $1,054 to $2,321, a $1,267 spread on the same certified stone. MOH London lists it at $2,321. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.03°
Pavilion angle39.22°
OriginNatural
Grading LabGIA
CertificateGIA 6515090345
Dimensions6.18 × 4.48 × 2.77 mm
L/W Ratio1.38
Top View
6.18 mm4.48 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515090345
Side View
Table 58.0%Crown 40.03°Girdle: MED-THKPavilion 39.22°Culet: NoneDepth 61.9%

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 2
Current: $2,321 SGD|Low: $879 SGD|High: $2,337 SGD|Avg: $1,439 SGD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$1,054 SGD
Retailer 3$1,120 SGD
Retailer 7$1,125 SGD
Retailer 8$1,142 SGD
Retailer 10$1,253 SGD
Retailer 4$1,259 SGD
Retailer 6$1,343 SGD
Retailer 2$1,771 SGD
Retailer 11$1,881 SGD
Retailer 5$1,946 SGD
MOH London$2,321 SGD

32 data points across 11 retailers

21 retailers$1,054 SGD to $2,321 SGD

B+
Cheapest Retailer
-
$1,054 SGD
$824 USD
Final sale: no returns
B+
Retailer 2
-
$1,120 SGD
$876 USD
View
B+
Retailer 3
-
$1,125 SGD
$880 USD
View
Retailer 4
-
$1,142 SGD
$893 USD
View
Price last confirmed 34 days ago
B+
Retailer 5
-
$1,142 SGD
$893 USD
View
B+
Retailer 6
-
$1,155 SGD
$903 USD
View
B+
Retailer 7
-
$1,253 SGD
$980 USD
View
B+
Retailer 8
-
$1,259 SGD
£775 GBP
View
B+
Retailer 9
-
$1,271 SGD
$994 USD
View
Retailer 10
-
$1,317 SGD
$1,030 USD
View
Price last confirmed 33 days ago
B
Retailer 11
-
$1,317 SGD
$1,030 USD
View
B
Retailer 12
-
$1,343 SGD
$1,050 USD
View
B
Retailer 13
-
$1,343 SGD
$1,050 USD
View
B
Retailer 14
-
$1,343 SGD
$1,050 USD
View
B
Retailer 15
-
$1,394 SGD
$1,090 USD
View
B
Retailer 16
-
$1,771 SGD
€1,319 EUR
View
Retailer 17
-
$1,881 SGD
A$2,263 AUD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$1,946 SGD
ZAR 24,580 ZAR
View
Most Expensive
B
MOH London
3B8888A20 · Oct 29
$2,321 SGD
£1,429 GBP
View
18 more retailers have this diamond
Prices start from $1,054 SGDSave up to $1,267 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 Oval
$1,054 SGD