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Heart|Natural|GIA

0.77ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 1146246642

Certificate GIA 1146246642

Diamond specifications and retailer prices

From £1,872 GBP
As of November 5, 2026
Save £1,739 GBP (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,321 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1146246642. Listed at 9 retailers as of November 4, 2026, with a 93% 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

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

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1146246642
Dimensions6.31 × 5.72 × 3.45 mm
L/W Ratio1.10
Culet sizeNone
Top View
6.31 mm5.72 mm0.77 ctE / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1146246642
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 54.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,321 GBP|Low: £1,872 GBP|High: £4,321 GBP|Avg: £2,580 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£1,872 GBP
Retailer 7£1,872 GBP
Retailer 5£1,959 GBP
Retailer 9£2,028 GBP
Retailer 8£2,160 GBP
Retailer 2£2,187 GBP
Retailer 3£3,086 GBP
Retailer 4£3,611 GBP
NZ Jewellers£4,321 GBP

44 data points across 9 retailers

9 retailers£1,872 GBP to £3,611 GBP

Retailer 1
-
£1,872 GBP
Price last confirmed 8 days ago
B
Retailer 2
-
£1,872 GBP
View
B
Retailer 3
-
£1,959 GBP
View
B
Retailer 4
-
£2,028 GBP
View
B
Retailer 5
-
£2,160 GBP
View
B
Retailer 6
-
£2,187 GBP
View
C
Retailer 7
-
£3,086 GBP
View
C
Retailer 8
-
£3,611 GBP
View
Most Expensive
NZ Jewellers
1f0ca68b-130a-477a-b953-95e6477e266c · Nov 5
£4,321 GBP
$5,783 USD
View
Price under review
8 more retailers have this diamond
Prices start from £1,872 GBPSave up to £1,739 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
£1,872 GBP