Round|Natural|GIA

5.40ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6555789722

Certificate GIA 6555789722

Diamond specifications and retailer prices

From €63,985 EUR
£56,287 GBP
As of November 1, 2026
Save €10,559 EUR (14%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €74,544 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 5.4ct natural round diamond

This 5.4ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555789722. Listed at 3 retailers as of October 31, 2026, with prices from €63,985 to €74,544, a €10,559 spread on the same certified stone. Blue Nile lists it at €74,544. 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

5.40
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555789722
Dimensions11.19 × 11.25 × 6.94 mm
L/W Ratio1.01
Top View
11.19 mm11.25 mm5.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555789722
Side View
Table 58.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €74,544 EUR|Low: €63,454 EUR|High: €78,468 EUR|Avg: €71,137 EUR|-5.0%
Blue Nile
Retailer 2
Retailer 3
November 1, 2026
Retailer 2€63,985 EUR
Retailer 3€68,164 EUR
Blue Nile€74,544 EUR

31 data points across 3 retailers

3 retailers€63,985 EUR to €74,544 EUR

B+
Cheapest Retailer
-
€63,985 EUR
£56,287 GBP
B+
Retailer 2
-
€68,164 EUR
$76,153 USD
View
Most Expensive
B
Blue Nile
29843308 · Oct 31
€74,544 EUR
$83,281 USD
View
2 more retailers have this diamond
Prices start from €63,985 EURSave up to €10,559 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+
5.40ct Round
€63,985 EUR