Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

GD • H/SI1 • GIA 6525105448

Certificate GIA 6525105448

Diamond specifications and retailer prices

From $585 USD
As of October 26, 2026
Save $409 USD (41%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,494 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6525105448. Listed at 20 retailers as of October 26, 2026, with a 70% 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
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6525105448
Dimensions5.65 × 3.92 × 2.35 mm
L/W Ratio1.44
Top View
5.65 mm3.92 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6525105448
Side View
Table 68.0%CrownGirdle: Slightly ThickPavilionCulet: 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: Oct 26
Current: $1,494 USD|Low: $408 USD|High: $1,509 USD|Avg: $836 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 6$449 USD
Retailer 9$652 USD
Retailer 3$780 USD
Retailer 2$792 USD
Retailer 8$835 USD
Retailer 4$945 USD
Retailer 7$971 USD
Retailer 5$994 USD
MOH London$1,494 USD

40 data points across 9 retailers

20 retailers$585 USD to $994 USD

B+
Cheapest Retailer
-
$585 USD
B
Retailer 2
-
$605 USD
View
B
Retailer 3
-
$609 USD
View
B
Retailer 4
-
$630 USD
View
B
Retailer 5
-
$630 USD
View
B
Retailer 6
-
$652 USD
View
B
Retailer 7
-
$675 USD
View
B
Retailer 8
-
$697 USD
View
B
Retailer 9
-
$714 USD
View
Retailer 10
-
$771 USD
View
Price last confirmed 7 days ago
B
Retailer 11
-
$780 USD
View
B
Retailer 12
-
$792 USD
£623 GBP
View
B
Retailer 13
-
$816 USD
View
C
Retailer 14
-
$898 USD
View
B
Retailer 15
-
$945 USD
€900 EUR
View
Retailer 16
-
$971 USD
A$1,494 AUD
View
Price last confirmed 27 days ago
B
Retailer 17
-
$994 USD
ZAR 16,063 ZAR
View
Most Expensive
MOH London
CC486A0A0 · Oct 26
$1,494 USD
£1,176 GBP
View
Price under review
17 more retailers have this diamond
Prices start from $585 USDSave up to $409 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.

B+
0.51ct Emerald
$585 USD