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Round|Natural|GIA

0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6511419240

Certificate GIA 6511419240

Diamond specifications and retailer prices

From $1,379 SGD
As of November 4, 2026
Save $1,791 SGD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,234 SGD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511419240. Listed at 22 retailers as of November 4, 2026, with a 130% 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

0.55
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6511419240
Dimensions5.36 × 5.32 × 3.19 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.36 mm5.32 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6511419240
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.8%

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 4
Current: $1,904 SGD|Low: $1,210 SGD|High: $3,218 SGD|Avg: $2,096 SGD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8$1,379 SGD
Retailer 10$1,452 SGD
Retailer 3$1,507 SGD
Retailer 12$1,634 SGD
Retailer 9$1,724 SGD
Retailer 1$1,904 SGD
Retailer 4$1,967 SGD
Retailer 5$2,240 SGD
Retailer 11$2,265 SGD
Retailer 6$2,678 SGD
Retailer 2$2,832 SGD
Retailer 7$3,170 SGD

45 data points across 12 retailers

22 retailers$1,379 SGD to $3,170 SGD

B+
Cheapest Retailer
-
$1,379 SGD
B+
Retailer 2
-
$1,452 SGD
View
Final sale: no returns
B+
Retailer 3
-
$1,501 SGD
View
B+
Retailer 4
-
$1,507 SGD
View
B+
Retailer 5
-
$1,572 SGD
View
Retailer 6
-
$1,572 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,634 SGD
View
B
Retailer 8
-
$1,724 SGD
View
B
Retailer 9
-
$1,815 SGD
View
B
Retailer 10
-
$1,878 SGD
View
B
Retailer 11
-
$1,878 SGD
View
B
Retailer 12
-
$1,904 SGD
View
B
Retailer 13
-
$1,941 SGD
View
B
Retailer 14
-
$1,967 SGD
View
B
Retailer 15
-
$2,183 SGD
View
B
Retailer 16
-
$2,240 SGD
View
Retailer 17
-
$2,265 SGD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$2,678 SGD
View
B
Retailer 19
-
$2,832 SGD
View
B
Retailer 20
-
$3,045 SGD
View
B
Retailer 21
-
$3,170 SGD
View
Most Expensive
NZ Jewellers
fc518b71-e872-449c-a74e-39cfca248c75 · Nov 4
$4,234 SGD
$3,315 USD
View
Price under review
21 more retailers have this diamond
Prices start from $1,379 SGDSave up to $1,791 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+
0.55ct Round
$1,379 SGD