CaratHunter
Plans
Cushion|Natural|GIA

3.50ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 6555403099

Certificate GIA 6555403099

Diamond specifications and retailer prices

From £30,374 GBP
HK$316,000 HKD
As of October 29, 2026
Save £4,174 GBP (12%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £52,989 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 3.5ct natural cushion diamond

This 3.5ct natural cushion sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555403099. Listed at 14 retailers as of October 29, 2026, with a relatively tight 14% 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

3.50
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.13°
Pavilion angle53.14°
OriginNatural
Grading LabGIA
CertificateGIA 6555403099
Dimensions10.88 × 7.78 × 5.42 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
10.88 mm7.78 mm3.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555403099
Side View
Table 67.0%Crown 32.13°Girdle: STK-THKPavilion 53.14°Culet: NoneDepth 69.7%

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 29
Current: £52,989 GBP|Low: £30,175 GBP|High: £56,826 GBP|Avg: £37,254 GBP|-5.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 12£30,374 GBP
Retailer 14£30,585 GBP
Retailer 7£30,613 GBP
Retailer 2£32,121 GBP
Retailer 9£32,147 GBP
Retailer 10£33,138 GBP
Retailer 4£34,547 GBP
Retailer 8£34,795 GBP
Retailer 13£36,096 GBP
Retailer 6£38,594 GBP
Retailer 5£40,197 GBP
Retailer 11£40,646 GBP
Retailer 3£40,891 GBP
MOH London£52,989 GBP

38 data points across 14 retailers

14 retailers£30,374 GBP to £34,547 GBP

A
Cheapest Retailer
-
£30,374 GBP
HK$316,000 HKD
Retailer 2
-
£30,585 GBP
$40,729 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
£30,613 GBP
$40,767 USD
View
A
Retailer 4
-
£32,121 GBP
₹4,073,800 INR
View
Retailer 5
-
£32,147 GBP
$42,810 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£33,138 GBP
$44,129 USD
View
A
Retailer 7
-
£33,698 GBP
A$69,038 AUD
View
A
Retailer 8
-
£34,547 GBP
$46,006 USD
View
Final sale: no returns
Retailer 9
-
£34,795 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
£36,096 GBP
$48,068 USD
View
Price last confirmed 12 days ago
Retailer 11
-
£38,594 GBP
$51,395 USD
View
Price last confirmed 10 days ago
Retailer 12
-
£40,197 GBP
$53,530 USD
View
Price last confirmed 10 days ago
Retailer 13
-
£40,891 GBP
$54,454 USD
View
Price last confirmed 8 days ago
Most Expensive
MOH London
6E75E7458 · Oct 21
£52,989 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £30,374 GBPSave up to £4,174 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
3.50ct Cushion
£30,374 GBP