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Round|Natural|GIA

0.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1553703098

Certificate GIA 1553703098

Diamond specifications and retailer prices

From $548 SGD
₹40,843 INR
As of October 31, 2026
Save $1,195 SGD (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,802 SGD at NZ Jewellers · As of September 2, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553703098. Listed at 19 retailers as of October 25, 2026, with a 218% 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1553703098
Dimensions5.15 × 5.16 × 3.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
5.15 mm5.16 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553703098
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

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 31
Current: $724 SGD|Low: $547 SGD|High: $2,029 SGD|Avg: $1,026 SGD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 7$548 SGD
Retailer 8$622 SGD
Retailer 12$630 SGD
Retailer 6$678 SGD
Retailer 1$724 SGD
Retailer 9$727 SGD
Retailer 3$793 SGD
Retailer 5$885 SGD
Retailer 10$906 SGD
Retailer 11$1,000 SGD
Retailer 4$1,054 SGD
Retailer 2$1,744 SGD

35 data points across 12 retailers

19 retailers$548 SGD to $1,744 SGD

A
Cheapest Retailer
-
$548 SGD
₹40,843 INR
A
Retailer 2
-
$622 SGD
HK$3,800 HKD
View
A
Retailer 3
-
$630 SGD
$493 USD
View
A
Retailer 4
-
$678 SGD
$530 USD
View
Final sale: no returns
A
Retailer 5
-
$724 SGD
A$872 AUD
View
A
Retailer 6
-
$727 SGD
View
A
Retailer 7
-
$793 SGD
View
Retailer 8
-
$855 SGD
$669 USD
View
Price last confirmed 30 days ago
A
Retailer 9
-
$885 SGD
£545 GBP
View
Retailer 10
-
$888 SGD
$695 USD
View
Price last confirmed 32 days ago
Retailer 11
-
$894 SGD
$699 USD
View
Price last confirmed 54 days ago
A
Retailer 12
-
$906 SGD
£558 GBP
View
Retailer 13
-
$987 SGD
$772 USD
View
Price last confirmed 29 days ago
A
Retailer 14
-
$1,000 SGD
€745 EUR
View
Retailer 15
-
$1,030 SGD
$806 USD
View
Price last confirmed 54 days ago
Retailer 16
-
$1,054 SGD
$824 USD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$1,744 SGD
£1,074 GBP
View
Retailer 18
-
$2,663 SGD
$2,083 USD
View
Price last confirmed 25 days ago
Most Expensive
NZ Jewellers
7d2e5e3c-528d-4201-a6c8-d2ff2c2427ec · Sep 2
$2,802 SGD
$2,192 USD
View
Price last confirmed 59 days ago
18 more retailers have this diamond
Prices start from $548 SGDSave up to $1,195 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 Round
$548 SGD