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Cushion|Lab Grown|IGI

3.55ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG631466065

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG631466065

Diamond specifications and retailer prices

From $1,985 USD
As of October 29, 2026
Save $11,633 USD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $13,618 USD at Yadav Diamonds · As of October 30, 2026
View at Yadav Diamonds

About this 3.55ct lab-grown cushion diamond

This 3.55ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG631466065 or 631466065. Listed at 24 retailers as of October 29, 2026, with prices from $1,985 to $13,618, a $11,633 spread on the same certified stone. Yadav Diamonds lists it at $13,618. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.55
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle30.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631466065
Dimensions8.56 × 8.20 × 5.29 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Top View
8.56 mm8.20 mm3.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631466065
Side View
Table 63.0%Crown 36.7°Girdle: MED-THKPavilion 30.3°Culet: NoneDepth 61.1%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $3,122 USD|Low: $1,985 USD|High: $13,530 USD|Avg: $5,526 USD|-11.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
October 30, 2026
Retailer 5$1,985 USD
Retailer 16$2,225 USD
Retailer 2$2,263 USD
Retailer 13$2,282 USD
Retailer 1$3,122 USD
Retailer 9$3,245 USD
Retailer 18$3,399 USD
Retailer 20$3,421 USD
Retailer 14$3,444 USD
Retailer 8$4,313 USD
Retailer 17$5,134 USD
Retailer 12$5,271 USD
Retailer 19$5,490 USD
Retailer 6$5,541 USD
Retailer 3$6,140 USD
Retailer 15$6,518 USD
Retailer 7$7,946 USD
Retailer 11$9,417 USD
Retailer 10$11,670 USD
Retailer 4$12,200 USD

34 data points across 20 retailers

24 retailers$1,985 USD to $13,618 USD

A
Cheapest Retailer
-
$1,985 USD
Final sale: no returns
A
Retailer 2
-
$2,225 USD
View
A
Retailer 3
-
$2,263 USD
View
Retailer 4
-
$2,282 USD
View
Price last confirmed 19 days ago
A
Retailer 5
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$2,535 USD
View
Final sale: no returns
A
Retailer 6
-
$3,122 USD
£2,458 GBP
View
A
Retailer 7
-
$3,245 USD
View
A
Retailer 8
-
$3,399 USD
View
A
Retailer 9
-
$3,421 USD
View
A
Retailer 10
-
$3,444 USD
€3,280 EUR
View
A
Retailer 11
-
$4,313 USD
£3,396 GBP
View
Retailer 12
-
$5,134 USD
A$7,899 AUD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$5,271 USD
ZAR 85,155 ZAR
View
A
Retailer 14
-
$5,490 USD
View
B+
Retailer 15
-
$5,541 USD
View
Retailer 16
-
$5,985 USD
View
Price last confirmed 8 days ago
B+
Retailer 17
-
$6,140 USD
View
B+
Retailer 18
-
$6,518 USD
£5,132 GBP
View
B+
Retailer 19
-
$7,946 USD
View
Retailer 20
-
$9,417 USD
A$14,487 AUD
View
Price last confirmed 21 days ago
Retailer 21
-
$11,670 USD
View
Price last confirmed 15 days ago
B
Retailer 22
-
$11,670 USD
View
B
Retailer 23
-
$12,200 USD
View
Most Expensive
B
Yadav Diamonds
13157155 · Oct 30
$13,618 USD
View
23 more retailers have this diamond
Prices start from $1,985 USDSave up to $11,633 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.

A
3.55ct Cushion
$1,985 USD