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Heart|Natural|GIA

1.81ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6511982574

Certificate GIA 6511982574

Diamond specifications and retailer prices

From £4,329 GBP
$5,800 USD
As of October 31, 2026
Save £1,694 GBP (28%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,023 GBP at Jared · As of October 30, 2026
View at Jared

About this 1.81ct natural heart diamond

This 1.81ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511982574. Listed at 11 retailers as of October 30, 2026, with prices from £4,329 to £6,023, a £1,694 spread on the same certified stone. Jared lists it at £6,023. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.81
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6511982574
Dimensions7.56 × 8.24 × 4.73 mm
L/W Ratio1.09
Top View
7.56 mm8.24 mm1.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6511982574
Side View
Table 59.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £6,023 GBP|Low: £4,329 GBP|High: £6,833 GBP|Avg: £5,717 GBP|-11.6%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 10£4,329 GBP
Retailer 5£4,500 GBP
Retailer 9£4,597 GBP
Retailer 3£4,653 GBP
Retailer 6£5,362 GBP
Retailer 8£5,447 GBP
Retailer 7£5,829 GBP
Retailer 11£5,829 GBP
Retailer 2£5,830 GBP
Retailer 4£5,978 GBP
Jared£6,023 GBP

40 data points across 11 retailers

11 retailers£4,329 GBP to £6,023 GBP

A
Cheapest Retailer
-
£4,329 GBP
$5,800 USD
A
Retailer 2
-
£4,500 GBP
$6,029 USD
View
A
Retailer 3
-
£4,597 GBP
$6,159 USD
View
A
Retailer 4
-
£4,653 GBP
$6,235 USD
View
B+
Retailer 5
-
£5,362 GBP
$7,185 USD
View
B+
Retailer 6
-
£5,447 GBP
$7,299 USD
View
B+
Retailer 7
-
£5,829 GBP
$7,810 USD
View
B+
Retailer 8
-
£5,829 GBP
$7,810 USD
View
B+
Retailer 9
-
£5,830 GBP
View
B+
Retailer 10
-
£5,978 GBP
€7,629 EUR
View
Most Expensive
B+
Jared
154770093 · Oct 30
£6,023 GBP
$8,070 USD
View
10 more retailers have this diamond
Prices start from £4,329 GBPSave up to £1,694 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
1.81ct Heart
£4,329 GBP