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Round|Natural|GIA

3.40ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554492806

Certificate GIA 2554492806

Diamond specifications and retailer prices

From $34,523 USD
£27,184 GBP
As of October 31, 2026
Save $2,563 USD (7%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $37,086 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 3.4ct natural round diamond

This 3.4ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554492806. Listed at 3 retailers as of October 31, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.40
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554492806
Dimensions9.66 × 9.61 × 5.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
9.66 mm9.61 mm3.40 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554492806
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.9%

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: Oct 31
Current: $37,086 USD|Low: $33,530 USD|High: $37,390 USD|Avg: $35,444 USD|+3.0%
Adiamor
Retailer 2
Retailer 3
October 31, 2026
Retailer 2$34,523 USD
Retailer 3$34,940 USD
Adiamor$37,086 USD

23 data points across 3 retailers

3 retailers$34,523 USD to $37,086 USD

B+
Cheapest Retailer
-
$34,523 USD
£27,184 GBP
B+
Retailer 2
-
$34,940 USD
View
Most Expensive
B+
Adiamor
D-81192306 · Oct 31
$37,086 USD
View
2 more retailers have this diamond
Prices start from $34,523 USDSave up to $2,563 USD

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+
3.40ct Round
$34,523 USD