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Round|Natural|GIA

3.40ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552040789

Certificate GIA 6552040789

Diamond specifications and retailer prices

From £22,898 GBP
$30,681 USD
As of October 31, 2026
Save £17,213 GBP (43%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £40,112 GBP at MOH London · As of October 29, 2026
View at MOH London

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 6552040789. Listed at 16 retailers as of October 29, 2026, with prices from £22,898 to £40,112, a £17,213 spread on the same certified stone. MOH London lists it at £40,112. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552040789
Dimensions9.57 × 9.55 × 5.96 mm
L/W Ratio1.00
Top View
9.57 mm9.55 mm3.40 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552040789
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £40,112 GBP|Low: £22,898 GBP|High: £40,379 GBP|Avg: £29,264 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8£22,898 GBP
Retailer 7£25,300 GBP
Retailer 4£25,534 GBP
Retailer 6£25,547 GBP
Retailer 2£30,998 GBP
Retailer 3£31,108 GBP
Retailer 5£32,941 GBP
MOH London£40,112 GBP

37 data points across 8 retailers

16 retailers£22,898 GBP to £40,112 GBP

A
Cheapest Retailer
-
£22,898 GBP
$30,681 USD
A
Retailer 2
-
£23,259 GBP
$31,164 USD
View
B+
Retailer 3
-
£24,804 GBP
$33,235 USD
View
Retailer 4
-
£25,300 GBP
A$52,153 AUD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
£25,534 GBP
View
B+
Retailer 6
-
£25,547 GBP
$34,230 USD
View
Retailer 7
-
£25,547 GBP
$34,230 USD
View
Price last confirmed 23 days ago
Retailer 8
-
£26,611 GBP
$35,656 USD
View
Price last confirmed 34 days ago
Retailer 9
-
£26,824 GBP
$35,941 USD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
£27,316 GBP
$36,601 USD
View
Retailer 11
-
£27,675 GBP
$37,082 USD
View
Price last confirmed 32 days ago
Retailer 12
-
£28,740 GBP
$38,508 USD
View
Price last confirmed 32 days ago
B
Retailer 13
-
£30,998 GBP
€39,556 EUR
View
B
Retailer 14
-
£31,108 GBP
View
B+
Retailer 15
-
£32,941 GBP
ZAR 713,052 ZAR
View
Most Expensive
B
MOH London
D18FDFF50 · Oct 29
£40,112 GBP
View
15 more retailers have this diamond
Prices start from £22,898 GBPSave up to £17,213 GBP

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
3.40ct Round
£22,898 GBP