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Radiant|Natural|GIA

1.78ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 14918943

Certificate GIA 14918943

Diamond specifications and retailer prices

From €11,414 EUR
£10,041 GBP
As of November 1, 2026
Save €5,036 EUR (31%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €16,450 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.78ct natural radiant diamond

This 1.78ct natural radiant sits in the one-and-a-half to two 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 14918943. Listed at 3 retailers as of November 1, 2026, with prices from €11,414 to €16,450, a €5,036 spread on the same certified stone. MOH London lists it at €16,450. 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

1.78
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 14918943
Dimensions6.86 × 6.70 × 4.78 mm
L/W Ratio1.02
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather, Cloud, Chip
Top View
6.86 mm6.70 mm1.78 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 14918943
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: €16,450 EUR|Low: €11,414 EUR|High: €16,648 EUR|Avg: €13,745 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
November 1, 2026
Retailer 2€11,414 EUR
Retailer 3€13,272 EUR
MOH London€16,450 EUR

42 data points across 3 retailers

3 retailers€11,414 EUR to €16,450 EUR

B
Cheapest Retailer
-
€11,414 EUR
£10,041 GBP
B
Retailer 2
-
€13,272 EUR
View
Most Expensive
B
MOH London
63BD051D9 · Nov 1
€16,450 EUR
£14,471 GBP
View
2 more retailers have this diamond
Prices start from €11,414 EURSave up to €5,036 EUR

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
1.78ct Radiant
€11,414 EUR