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Heart|Natural|GIA

1.80ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6442187096

Certificate GIA 6442187096

Diamond specifications and retailer prices

From €6,267 EUR
HK$54,700 HKD
As of November 1, 2026
Save €7,258 EUR (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €13,525 EUR 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 €6,267 to €13,525, a €7,258 spread on the same certified stone. NZ Jewellers lists it at €13,525. 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
Color
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: €6,411 EUR|Low: €6,396 EUR|High: €11,405 EUR|Avg: €8,058 EUR|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 1€6,411 EUR
Retailer 7€7,254 EUR
Retailer 8€7,464 EUR
Retailer 4€7,541 EUR
Retailer 3€7,566 EUR
Retailer 6€7,617 EUR
Retailer 5€9,934 EUR
Retailer 2€11,270 EUR

29 data points across 8 retailers

22 retailers€6,267 EUR to €13,525 EUR

A
Cheapest Retailer
-
€6,267 EUR
HK$54,700 HKD
A
Retailer 2
-
€6,411 EUR
₹682,107 INR
View
B+
Retailer 3
-
€6,842 EUR
$7,644 USD
View
Retailer 4
-
€6,935 EUR
SGD 10,470 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
€6,989 EUR
$7,808 USD
View
B+
Retailer 6
-
€7,254 EUR
SGD 10,951 SGD
View
B+
Retailer 7
-
€7,259 EUR
$8,110 USD
View
B+
Retailer 8
-
€7,286 EUR
$8,140 USD
View
B+
Retailer 9
-
€7,420 EUR
$8,290 USD
View
B+
Retailer 10
-
€7,464 EUR
$8,339 USD
View
B+
Retailer 11
-
€7,464 EUR
$8,339 USD
View
Final sale: no returns
B+
Retailer 12
-
€7,541 EUR
£6,634 GBP
View
B+
Retailer 13
-
€7,566 EUR
£6,656 GBP
View
Retailer 14
-
€7,617 EUR
A$13,092 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
€8,086 EUR
$9,034 USD
View
B+
Retailer 16
-
€8,211 EUR
$9,173 USD
View
B+
Retailer 17
-
€8,465 EUR
$9,458 USD
View
B
Retailer 18
-
€8,580 EUR
$9,586 USD
View
B+
Retailer 19
-
€9,330 EUR
$10,424 USD
View
B+
Retailer 20
-
€9,934 EUR
ZAR 179,303 ZAR
View
B
Retailer 21
-
€11,270 EUR
£9,914 GBP
View
Most Expensive
B
NZ Jewellers
a618d29c-7b39-4c36-8162-91f4522f4d77 · Oct 30
€13,525 EUR
$15,110 USD
View
21 more retailers have this diamond
Prices start from €6,267 EURSave up to €7,258 EUR

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
€6,267 EUR