Emerald|Natural|GIA

0.51ct G SI1 Emerald Natural Diamond

EX • G/SI1 • GIA 2518144919

Certificate GIA 2518144919

Diamond specifications and retailer prices

From $437 USD
As of October 28, 2026
Save $168 USD (28%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $605 USD at 77 Diamonds · As of October 29, 2026
View at 77 Diamonds

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2518144919. Listed at 7 retailers as of October 28, 2026, with prices from $437 to $605, a $168 spread on the same certified stone. 77 Diamonds lists it at $605. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2518144919
Dimensions5.17 × 3.80 × 2.60 mm
L/W Ratio1.36
Top View
5.17 mm3.80 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2518144919
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $605 USD|Low: $379 USD|High: $750 USD|Avg: $565 USD|-0.5%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 5$437 USD
Retailer 2$438 USD
Retailer 3$450 USD
Retailer 6$470 USD
Retailer 10$484 USD
Retailer 4$524 USD
77 Diamonds$605 USD
Retailer 7$720 USD
Retailer 8$720 USD
Retailer 9$750 USD

39 data points across 10 retailers

7 retailers$437 USD to $605 USD

A
Cheapest Retailer
-
$437 USD
Final sale: no returns
A
Retailer 2
-
$438 USD
View
A
Retailer 3
-
$450 USD
View
A
Retailer 4
-
$470 USD
MYR 1,915 MYR
View
A
Retailer 5
-
$484 USD
View
Price last confirmed 94 days ago
A
Retailer 6
-
$524 USD
SGD 708 SGD
View
Most Expensive
B+
77 Diamonds
EMCPBPXRYRUP · Oct 29
$605 USD
£476 GBP
View
6 more retailers have this diamond
Prices start from $437 USDSave up to $168 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
$437 USD