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Cushion|Lab Grown|IGI

3.55ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG843670815

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843670815

Diamond specifications and retailer prices

From $3,330 NZD
$1,877 USD
As of October 30, 2026
Save $14,927 NZD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,258 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 LG843670815 or 843670815. Listed at 15 retailers as of October 30, 2026, with prices from $3,330 to $18,258, a $14,927 spread on the same certified stone. Do Amore Diamonds lists it at $18,258. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843670815
Dimensions11.60 × 7.62 × 4.98 mm
L/W Ratio1.52
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.60 mm7.62 mm3.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843670815
Side View
Table 56.0%Crown 31.9°Girdle: STK-THKPavilion 34.2°Culet: NoneDepth 65.4%

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 30
Current: $18,258 NZD|Low: $3,034 NZD|High: $20,706 NZD|Avg: $8,623 NZD|+11.6%
Do Amore Diamonds
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
Retailer 15
Retailer 16
October 31, 2026
Retailer 13$3,330 NZD
Retailer 14$3,380 NZD
Retailer 11$3,752 NZD
Retailer 4$4,627 NZD
Retailer 9$5,477 NZD
Retailer 12$6,047 NZD
Retailer 5$6,884 NZD
Retailer 7$8,368 NZD
Retailer 3$8,555 NZD
Retailer 15$9,757 NZD
Retailer 6$9,768 NZD
Retailer 8$11,870 NZD
Retailer 10$13,041 NZD
Retailer 16$13,655 NZD
Retailer 2$16,505 NZD
Do Amore Diamonds$18,258 NZD

16 data points across 16 retailers

15 retailers$3,330 NZD to $18,258 NZD

A
Cheapest Retailer
-
$3,330 NZD
$1,877 USD
A
Retailer 2
-
$3,380 NZD
$1,905 USD
View
A
Retailer 3
-
$3,752 NZD
£1,665 GBP
View
A
Retailer 4
-
$4,627 NZD
$2,608 USD
View
A
Retailer 5
-
$5,477 NZD
€2,940 EUR
View
A
Retailer 6
-
$6,047 NZD
$3,408 USD
View
Retailer 7
-
$6,884 NZD
A$5,969 AUD
View
Price last confirmed 9 days ago
Retailer 8
-
$8,368 NZD
$4,716 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$8,555 NZD
$4,822 USD
View
B+
Retailer 10
-
$9,757 NZD
£4,330 GBP
View
Retailer 11
-
$9,768 NZD
$5,505 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$13,041 NZD
$7,350 USD
View
B+
Retailer 13
-
$13,655 NZD
$7,696 USD
View
B
Retailer 14
-
$16,505 NZD
A$14,311 AUD
View
Most Expensive
B
Do Amore Diamonds
27-494F196A1 · Oct 31
$18,258 NZD
$10,290 USD
View
14 more retailers have this diamond
Prices start from $3,330 NZDSave up to $14,927 NZD

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
$3,330 NZD