CaratHunter
Plans
Emerald|Natural|GIA

0.51ct D SI2 Emerald Natural Diamond

GD • D/SI2 • GIA 2506495053

Certificate GIA 2506495053

Diamond specifications and retailer prices

From $639 AUD
As of November 4, 2026
Save $245 AUD (28%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $883 AUD at 77 Diamonds · As of November 5, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2506495053. Listed at 6 retailers as of November 4, 2026, with prices from $639 to $883, a $245 spread on the same certified stone. 77 Diamonds lists it at $883. 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
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2506495053
Dimensions5.18 × 3.81 × 2.61 mm
L/W Ratio1.36
Top View
5.18 mm3.81 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2506495053
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

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 4
Current: $883 AUD|Low: $557 AUD|High: $901 AUD|Avg: $744 AUD|-0.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4$639 AUD
Retailer 5$687 AUD
Retailer 6$726 AUD
Retailer 2$737 AUD
Retailer 3$767 AUD
77 Diamonds$883 AUD

40 data points across 6 retailers

6 retailers$639 AUD to $883 AUD

A
Cheapest Retailer
-
$639 AUD
Final sale: no returns
A
Retailer 2
-
$687 AUD
View
Retailer 3
-
$726 AUD
View
Price last confirmed 102 days ago
B+
Retailer 4
-
$737 AUD
View
B+
Retailer 5
-
$767 AUD
View
Most Expensive
B+
77 Diamonds
EMCPXKA5AH6S · Nov 5
$883 AUD
£487 GBP
View
5 more retailers have this diamond
Prices start from $639 AUDSave up to $245 AUD

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
$639 AUD