Heart|Natural|GIA

0.81ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 2185878049

Certificate GIA 2185878049

Diamond specifications and retailer prices

From £1,956 GBP
$2,621 USD
As of October 29, 2026
Save £1,655 GBP (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,515 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.81ct natural heart diamond

This 0.81ct natural heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2185878049. Listed at 8 retailers as of November 1, 2026, with a 85% 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

0.81
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2185878049
Dimensions6.80 × 6.56 × 3.31 mm
L/W Ratio1.04
Culet sizeVery Small
Top View
6.80 mm6.56 mm0.81 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2185878049
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: Very SmallDepth 48.7%

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: Oct 29
Current: £4,515 GBP|Low: £1,520 GBP|High: £4,515 GBP|Avg: £2,582 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10£1,520 GBP
Retailer 5£1,956 GBP
Retailer 6£1,956 GBP
Retailer 4£2,032 GBP
Retailer 8£2,115 GBP
Retailer 7£2,258 GBP
Retailer 9£2,521 GBP
Retailer 3£3,217 GBP
Retailer 2£3,611 GBP
NZ Jewellers£4,515 GBP

17 data points across 10 retailers

8 retailers£1,956 GBP to £3,611 GBP

B
Cheapest Retailer
-
£1,956 GBP
$2,621 USD
B
Retailer 2
-
£1,956 GBP
$2,621 USD
View
B
Retailer 3
-
£2,032 GBP
$2,722 USD
View
B
Retailer 4
-
£2,115 GBP
$2,834 USD
View
B
Retailer 5
-
£2,258 GBP
$3,025 USD
View
B
Retailer 6
-
£3,217 GBP
ZAR 69,625 ZAR
View
B
Retailer 7
-
£3,611 GBP
View
Most Expensive
NZ Jewellers
075b42e2-0d5d-4771-a615-7a35c977362d · Oct 30
£4,515 GBP
$6,049 USD
View
Price under review
7 more retailers have this diamond
Prices start from £1,956 GBPSave up to £1,655 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
0.81ct Heart
£1,956 GBP