Emerald|Natural|GIA

0.51ct G SI1 Emerald Natural Diamond

VG • G/SI1 • GIA 1505848356

Certificate GIA 1505848356

Diamond specifications and retailer prices

From £402 GBP
$539 USD
As of November 2, 2026
Save £567 GBP (59%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,391 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1505848356. Listed at 24 retailers as of November 1, 2026, with a 141% 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1505848356
Dimensions5.67 × 3.86 × 2.32 mm
L/W Ratio1.47
Culet sizeNone
Top View
5.67 mm3.86 mm0.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1505848356
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 60.1%

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: Nov 2
Current: £1,368 GBP|Low: £335 GBP|High: £1,368 GBP|Avg: £594 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 6£402 GBP
Retailer 11£420 GBP
Retailer 4£440 GBP
Retailer 5£469 GBP
Retailer 13£484 GBP
Retailer 10£515 GBP
Retailer 2£518 GBP
Retailer 12£522 GBP
Retailer 3£536 GBP
Retailer 8£567 GBP
Retailer 14£629 GBP
Retailer 15£654 GBP
Retailer 7£667 GBP
Retailer 9£970 GBP
NZ Jewellers£1,368 GBP

40 data points across 15 retailers

24 retailers£402 GBP to £970 GBP

B+
Cheapest Retailer
-
£402 GBP
$539 USD
Final sale: no returns
B+
Retailer 2
-
£420 GBP
$563 USD
View
Retailer 3
-
£436 GBP
$584 USD
View
Price last confirmed 40 days ago
B+
Retailer 4
-
£440 GBP
$590 USD
View
Retailer 5
-
£444 GBP
$595 USD
View
Price last confirmed 31 days ago
B+
Retailer 6
-
£461 GBP
$618 USD
View
B+
Retailer 7
-
£461 GBP
$618 USD
View
Retailer 8
-
£469 GBP
$629 USD
View
Price last confirmed 7 days ago
Retailer 9
-
£478 GBP
$640 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
£484 GBP
$649 USD
View
Retailer 11
-
£503 GBP
$674 USD
View
Price last confirmed 38 days ago
Retailer 12
-
£512 GBP
$686 USD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
£515 GBP
View
B+
Retailer 14
-
£518 GBP
$694 USD
View
B+
Retailer 15
-
£522 GBP
$699 USD
View
B
Retailer 16
-
£536 GBP
View
B
Retailer 17
-
£567 GBP
$760 USD
View
B
Retailer 18
-
£629 GBP
€803 EUR
View
B
Retailer 19
-
£654 GBP
ZAR 14,162 ZAR
View
Retailer 20
-
£667 GBP
A$1,375 AUD
View
Price last confirmed 29 days ago
B
Retailer 21
-
£970 GBP
View
Retailer 22
-
£1,367 GBP
$1,832 USD
View
Price under review
Retailer 23
-
£1,368 GBP
$1,833 USD
View
Price under review
Most Expensive
NZ Jewellers
250fb563-3085-484e-905e-62e6948ad96c · Sep 29
£1,391 GBP
$1,864 USD
View
Price under review
23 more retailers have this diamond
Prices start from £402 GBPSave up to £567 GBP

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
£402 GBP