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Heart|Natural|GIA

0.77ct E SI1 Heart Natural Diamond

VG • E/SI1 • GIA 8

Certificate GIA 8

Diamond specifications and retailer prices

From £1,635 GBP
As of November 6, 2026
Save £402 GBP (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,037 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.77ct natural heart diamond

This 0.77ct natural heart sits in the just-under-one-carat band, graded E 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. Listed at 3 retailers as of November 5, 2026, with prices from £1,635 to £2,037, a £402 spread on the same certified stone. Blue Nile lists it at £2,037. 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

0.77
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 8
Dimensions5.72 × 6.31 × 3.45 mm
L/W Ratio1.10
Top View
5.72 mm6.31 mm0.77 ctE / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 8
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 54.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,037 GBP|Low: £1,635 GBP|High: £2,037 GBP|Avg: £1,767 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£1,635 GBP
Retailer 3£1,765 GBP
Blue Nile£2,037 GBP

2 data points across 3 retailers

3 retailers£1,635 GBP to £2,037 GBP

B
Cheapest Retailer
-
£1,635 GBP
B
Retailer 2
-
£1,765 GBP
View
Most Expensive
C
Blue Nile
299277 · Nov 5
£2,037 GBP
$2,726 USD
View
2 more retailers have this diamond
Prices start from £1,635 GBPSave up to £402 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
0.77ct Heart
£1,635 GBP