Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

GD • H/SI1 • GIA 6525105448

Certificate GIA 6525105448

Diamond specifications and retailer prices

From $1,073 NZD
$605 USD
As of October 27, 2026
Save $603 NZD (36%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,650 NZD 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 56% 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
Colour
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 27
Current: $2,650 NZD|Low: $724 NZD|High: $2,677 NZD|Avg: $1,493 NZD|-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$797 NZD
Retailer 9$1,157 NZD
Retailer 3$1,384 NZD
Retailer 2$1,405 NZD
Retailer 8$1,482 NZD
Retailer 4$1,677 NZD
Retailer 7$1,723 NZD
Retailer 5$1,764 NZD
MOH London$2,650 NZD

38 data points across 9 retailers

20 retailers$1,073 NZD to $1,677 NZD

B+
Retailer 1
-
$1,038 NZD
$585 USD
Price last confirmed 7 days ago
B
Retailer 2
-
$1,073 NZD
$605 USD
View
Retailer 3
-
$1,081 NZD
$609 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$1,118 NZD
$630 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$1,118 NZD
$630 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$1,157 NZD
$652 USD
View
B
Retailer 7
-
$1,198 NZD
$675 USD
View
Retailer 8
-
$1,237 NZD
$697 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
$1,267 NZD
$714 USD
View
Retailer 10
-
$1,368 NZD
$771 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$1,384 NZD
$780 USD
View
Price last confirmed 5 days ago
B
Retailer 12
-
$1,405 NZD
£623 GBP
View
B
Retailer 13
-
$1,448 NZD
$816 USD
View
C
Retailer 14
-
$1,593 NZD
$898 USD
View
B
Retailer 15
-
$1,677 NZD
€900 EUR
View
Retailer 16
-
$1,723 NZD
A$1,494 AUD
View
Price last confirmed 29 days ago
B
Retailer 17
-
$1,764 NZD
ZAR 16,063 ZAR
View
Price last confirmed 7 days ago
Most Expensive
MOH London
CC486A0A0 · Oct 26
$2,650 NZD
£1,176 GBP
View
Price under review
17 more retailers have this diamond
Prices start from $1,073 NZDSave up to $603 NZD

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
$1,073 NZD