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Heart|Natural|GIA

1.70ct D SI2 Heart Natural Diamond

ID • D/SI2 • GIA 48

Certificate GIA 48

Diamond specifications and retailer prices

From €7,311 EUR
$8,200 USD
As of November 2, 2026
Save €1,927 EUR (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €9,238 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from €7,311 to €9,238, a €1,927 spread on the same certified stone. Blue Nile lists it at €9,238. 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

1.70
Carat
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 48
Dimensions7.39 × 8.15 × 4.72 mm
L/W Ratio1.10
Top View
7.39 mm8.15 mm1.70 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 48
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €9,238 EUR|Low: €7,311 EUR|High: €9,238 EUR|Avg: €7,980 EUR
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2€7,311 EUR
Retailer 3€8,020 EUR
Blue Nile€9,238 EUR

2 data points across 3 retailers

3 retailers€7,311 EUR to €9,238 EUR

B+
Cheapest Retailer
-
€7,311 EUR
$8,200 USD
B+
Retailer 2
-
€8,020 EUR
$8,995 USD
View
Most Expensive
B
Blue Nile
27176014 · Oct 31
€9,238 EUR
$10,361 USD
View
2 more retailers have this diamond
Prices start from €7,311 EURSave up to €1,927 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.

B+
1.70ct Heart
€7,311 EUR