Emerald|Natural|GIA

0.51ct E SI1 Emerald Natural Diamond

EX • E/SI1 • GIA 5553458174

Certificate GIA 5553458174

Diamond specifications and retailer prices

From $525 USD
As of November 4, 2026
Save $156 USD (23%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $681 USD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded E 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 5553458174. Listed at 6 retailers as of November 4, 2026, with prices from $525 to $681, a $156 spread on the same certified stone. Blue Nile lists it at $681. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553458174
Dimensions5.58 × 3.66 × 2.43 mm
L/W Ratio1.52
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
5.58 mm3.66 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553458174
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.4%

Caratlytics Score

How it works →
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: $681 USD|Low: $459 USD|High: $719 USD|Avg: $593 USD|-5.3%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 6$525 USD
Retailer 5$536 USD
Retailer 3$545 USD
Retailer 4$586 USD
Retailer 2$650 USD
Blue Nile$681 USD

41 data points across 6 retailers

6 retailers$525 USD to $681 USD

A
Cheapest Retailer
-
$525 USD
A
Retailer 2
-
$536 USD
View
Final sale: no returns
A
Retailer 3
-
$545 USD
View
A
Retailer 4
-
$586 USD
View
B+
Retailer 5
-
$650 USD
View
Most Expensive
B+
Blue Nile
29346199 · Nov 5
$681 USD
View
5 more retailers have this diamond
Prices start from $525 USDSave up to $156 USD

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
$525 USD