Heart|Natural|GIA

1.80ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6442187096

Certificate GIA 6442187096

Diamond specifications and retailer prices

From £5,226 GBP
HK$54,700 HKD
As of November 1, 2026
Save £6,052 GBP (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £11,277 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.8ct natural heart diamond

This 1.8ct 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 6442187096. Listed at 22 retailers as of October 30, 2026, with prices from £5,226 to £11,277, a £6,052 spread on the same certified stone. NZ Jewellers lists it at £11,277. 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

1.80
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle38.58°
OriginNatural
Grading LabGIA
CertificateGIA 6442187096
Dimensions8.19 × 6.84 × 5.13 mm
L/W Ratio1.20
Top View
8.19 mm6.84 mm1.80 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6442187096
Side View
Table 60.0%Crown 38.58°Girdle: STK-VTKPavilionCulet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £5,345 GBP|Low: £5,333 GBP|High: £9,510 GBP|Avg: £6,719 GBP|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 1£5,345 GBP
Retailer 7£6,048 GBP
Retailer 8£6,224 GBP
Retailer 4£6,288 GBP
Retailer 3£6,309 GBP
Retailer 6£6,351 GBP
Retailer 5£8,283 GBP
Retailer 2£9,397 GBP

29 data points across 8 retailers

22 retailers£5,226 GBP to £11,277 GBP

A
Cheapest Retailer
-
£5,226 GBP
HK$54,700 HKD
A
Retailer 2
-
£5,345 GBP
₹682,107 INR
View
B+
Retailer 3
-
£5,705 GBP
$7,644 USD
View
Retailer 4
-
£5,782 GBP
SGD 10,470 SGD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
£5,827 GBP
$7,808 USD
View
B+
Retailer 6
-
£6,048 GBP
SGD 10,951 SGD
View
B+
Retailer 7
-
£6,053 GBP
$8,110 USD
View
B+
Retailer 8
-
£6,075 GBP
$8,140 USD
View
B+
Retailer 9
-
£6,187 GBP
$8,290 USD
View
B+
Retailer 10
-
£6,224 GBP
$8,339 USD
View
B+
Retailer 11
-
£6,224 GBP
$8,339 USD
View
Final sale: no returns
B+
Retailer 12
-
£6,288 GBP
View
B+
Retailer 13
-
£6,309 GBP
View
Retailer 14
-
£6,351 GBP
A$13,092 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£6,742 GBP
$9,034 USD
View
B+
Retailer 16
-
£6,846 GBP
$9,173 USD
View
B+
Retailer 17
-
£7,058 GBP
$9,458 USD
View
B
Retailer 18
-
£7,154 GBP
$9,586 USD
View
B+
Retailer 19
-
£7,780 GBP
$10,424 USD
View
B+
Retailer 20
-
£8,283 GBP
ZAR 179,303 ZAR
View
B
Retailer 21
-
£9,397 GBP
View
Most Expensive
B
NZ Jewellers
a618d29c-7b39-4c36-8162-91f4522f4d77 · Oct 30
£11,277 GBP
$15,110 USD
View
21 more retailers have this diamond
Prices start from £5,226 GBPSave up to £6,052 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
1.80ct Heart
£5,226 GBP