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Emerald|Natural|GIA

0.78ct D SI1 Emerald Natural Diamond

VG • D/SI1 • GIA 1558370829

Certificate GIA 1558370829

Diamond specifications and retailer prices

From £939 GBP
As of October 30, 2026
Save £90 GBP (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,028 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 0.78ct natural emerald diamond

This 0.78ct natural emerald sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558370829. Listed at 2 retailers as of October 29, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.78
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.9°
Pavilion angle55.7°
OriginNatural
Grading LabGIA
CertificateGIA 1558370829
Dimensions6.52 × 4.57 × 2.97 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
6.52 mm4.57 mm0.78 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558370829
Side View
Table 69.0%Crown 47.9°Girdle: THN-MEDPavilion 55.7°Culet: NoneDepth 65.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,028 GBP|Low: £903 GBP|High: £1,057 GBP|Avg: £963 GBP|-1.9%
Blue Nile
Retailer 2
Retailer 3
October 30, 2026
Retailer 2£939 GBP
Retailer 3£943 GBP
Blue Nile£1,028 GBP

39 data points across 3 retailers

2 retailers£939 GBP to £1,028 GBP

A
Cheapest Retailer
-
£939 GBP
Most Expensive
B+
Blue Nile
29246024 · Oct 29
£1,028 GBP
$1,378 USD
View
1 more retailer has this diamond
Prices start from £939 GBPSave up to £90 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.

A
0.78ct Emerald
£939 GBP