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Emerald|Natural|GIA

0.51ct F SI1 Emerald Natural Diamond

EX • F/SI1 • GIA 6551104400

Certificate GIA 6551104400

Diamond specifications and retailer prices

From $637 SGD
As of November 4, 2026
Save $957 SGD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,169 SGD at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded F 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 6551104400. Listed at 16 retailers as of November 4, 2026, with a 150% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551104400
Dimensions5.44 × 3.97 × 2.54 mm
L/W Ratio1.37
Top View
5.44 mm3.97 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551104400
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.9%

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: Nov 4
Current: $2,169 SGD|Low: $585 SGD|High: $2,169 SGD|Avg: $1,009 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4$637 SGD
Retailer 13$691 SGD
Retailer 3$745 SGD
Retailer 10$745 SGD
Retailer 12$798 SGD
Retailer 2$844 SGD
Retailer 7$858 SGD
Retailer 11$866 SGD
Retailer 5$945 SGD
Retailer 6$1,024 SGD
Retailer 8$1,067 SGD
Retailer 9$1,594 SGD
NZ Jewellers$2,169 SGD

30 data points across 13 retailers

16 retailers$637 SGD to $1,594 SGD

A
Cheapest Retailer
-
$637 SGD
Final sale: no returns
A
Retailer 2
-
$691 SGD
View
B+
Retailer 3
-
$745 SGD
View
Retailer 4
-
$745 SGD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$798 SGD
View
Retailer 6
-
$798 SGD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$844 SGD
View
B+
Retailer 8
-
$858 SGD
View
B+
Retailer 9
-
$866 SGD
View
B+
Retailer 10
-
$945 SGD
View
B+
Retailer 11
-
$1,024 SGD
View
Retailer 12
-
$1,040 SGD
View
Price last confirmed 35 days ago
B+
Retailer 13
-
$1,067 SGD
View
B
Retailer 14
-
$1,594 SGD
View
Retailer 15
-
$2,169 SGD
View
Price under review
Most Expensive
NZ Jewellers
a5b4e83d-9984-4621-a5e4-939c3e55263a · Oct 23
$2,169 SGD
$1,698 USD
View
Price under review
15 more retailers have this diamond
Prices start from $637 SGDSave up to $957 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 Emerald
$637 SGD