CaratHunter
Plans
Round|Natural|GIA

5.40ct D SI1 Round Natural Diamond

ID • D/SI1 • GIA 171

Certificate GIA 171

Diamond specifications and retailer prices

From €143,616 EUR
$160,449 USD
As of October 30, 2026
Save €23,458 EUR (14%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €167,074 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 3 retailers as of October 30, 2026, with prices from €143,616 to €167,074, a €23,458 spread on the same certified stone. Blue Nile lists it at €167,074. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 171
Dimensions11.15 × 11.17 × 6.96 mm
L/W Ratio1.00
Top View
11.15 mm11.17 mm5.40 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 171
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

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: Oct 30
Current: €167,074 EUR|Low: €142,188 EUR|High: €167,074 EUR|Avg: €153,458 EUR
Blue Nile
Retailer 2
Retailer 3
Retailer 4
September 23, 2026
Retailer 2€143,616 EUR
Retailer 4€144,688 EUR
Retailer 3€166,766 EUR
Blue Nile€167,074 EUR

4 data points across 4 retailers

3 retailers€143,616 EUR to €167,074 EUR

B+
Cheapest Retailer
-
€143,616 EUR
$160,449 USD
B+
Retailer 2
-
€144,688 EUR
$161,646 USD
View
Most Expensive
B
Blue Nile
14748400 · Oct 31
€167,074 EUR
$186,656 USD
View
2 more retailers have this diamond
Prices start from €143,616 EURSave up to €23,458 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
€143,616 EUR