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Heart|Natural|GIA

0.68ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2538603150

Certificate GIA 2538603150

Diamond specifications and retailer prices

From €411 EUR
$459 USD
As of October 31, 2026
Save €122 EUR (23%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €533 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.68ct natural heart diamond

This 0.68ct natural heart sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2538603150. Listed at 5 retailers as of October 31, 2026, with prices from €411 to €533, a €122 spread on the same certified stone. Blue Nile lists it at €533. 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

0.68
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2538603150
Dimensions6.28 × 5.33 × 3.70 mm
L/W Ratio1.18
Top View
6.28 mm5.33 mm0.68 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2538603150
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.0%

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: €533 EUR|Low: €395 EUR|High: €643 EUR|Avg: €519 EUR|-17.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4€411 EUR
Retailer 5€450 EUR
Retailer 2€516 EUR
Retailer 3€528 EUR
Blue Nile€533 EUR

40 data points across 5 retailers

5 retailers€411 EUR to €533 EUR

A
Cheapest Retailer
-
€411 EUR
$459 USD
Final sale: no returns
A
Retailer 2
-
€450 EUR
SGD 679 SGD
View
A
Retailer 3
-
€516 EUR
£454 GBP
View
A
Retailer 4
-
€528 EUR
$590 USD
View
Most Expensive
A
Blue Nile
26783101 · Oct 31
€533 EUR
$595 USD
View
4 more retailers have this diamond
Prices start from €411 EURSave up to €122 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
0.68ct Heart
€411 EUR