CaratHunter
Plans
Emerald|Natural|GIA

0.51ct K SI2 Emerald Natural Diamond

GD • K/SI2 • GIA 6421962533

Certificate GIA 6421962533

Diamond specifications and retailer prices

From $379 SGD
As of November 6, 2026
Save $830 SGD (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,010 SGD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6421962533. Listed at 19 retailers as of November 4, 2026, with a 219% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6421962533
Dimensions5.09 × 3.89 × 2.69 mm
L/W Ratio1.31
Top View
5.09 mm3.89 mm0.51 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6421962533
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $379 SGD|Low: $379 SGD|High: $1,655 SGD|Avg: $773 SGD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$379 SGD
Retailer 8$549 SGD
Retailer 5$565 SGD
Retailer 3$639 SGD
Retailer 7$667 SGD
Retailer 2$840 SGD
Retailer 4$1,210 SGD
Retailer 6$1,455 SGD

43 data points across 8 retailers

19 retailers$379 SGD to $1,210 SGD

A
Cheapest Retailer
-
$379 SGD
Retailer 2
-
$441 SGD
View
Price last confirmed 63 days ago
B+
Retailer 3
-
$525 SGD
View
Retailer 4
-
$525 SGD
View
Price last confirmed 45 days ago
Retailer 5
-
$525 SGD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$525 SGD
View
Retailer 7
-
$549 SGD
View
Price last confirmed 16 days ago
Retailer 8
-
$565 SGD
View
Price last confirmed 21 days ago
Retailer 9
-
$605 SGD
View
Price last confirmed 66 days ago
Retailer 10
-
$605 SGD
View
Price last confirmed 43 days ago
B
Retailer 11
-
$639 SGD
View
B
Retailer 12
-
$667 SGD
View
B
Retailer 13
-
$691 SGD
View
B
Retailer 14
-
$840 SGD
View
C
Retailer 15
-
$1,210 SGD
View
Retailer 16
-
$1,455 SGD
View
Price last confirmed 16 days ago
Retailer 17
-
$2,010 SGD
View
Price under review
Retailer 18
-
$2,010 SGD
View
Price under review
Most Expensive
NZ Jewellers
518d2469-a78e-4951-b625-97fa260718da · Nov 5
$2,010 SGD
$1,574 USD
View
Price under review
18 more retailers have this diamond
Prices start from $379 SGDSave up to $830 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
$379 SGD