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Cushion|Lab Grown|IGI

3.08ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG607388765

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG607388765

Diamond specifications and retailer prices

From $1,154 NZD
As of November 5, 2026
Save $3,752 NZD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,907 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.08ct lab-grown cushion diamond

This 3.08ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG607388765 or 607388765. Listed at 10 retailers as of November 4, 2026, with prices from $1,154 to $4,907, a $3,752 spread on the same certified stone. Brilliant Earth lists it at $4,907. 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

3.08
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607388765
Dimensions8.55 × 8.38 × 5.49 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.55 mm8.38 mm3.08 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607388765
Side View
Table 63.0%Crown 35.8°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 65.5%

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: Nov 5
Current: $4,907 NZD|Low: $888 NZD|High: $5,718 NZD|Avg: $2,252 NZD|-14.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9$888 NZD
Retailer 10$1,091 NZD
Retailer 7$1,154 NZD
Retailer 6$1,295 NZD
Retailer 3$1,411 NZD
Retailer 2$1,443 NZD
Retailer 11$1,575 NZD
Retailer 12$1,898 NZD
Retailer 5$3,467 NZD
Retailer 8$3,554 NZD
Retailer 4$4,315 NZD
Brilliant Earth$4,907 NZD

39 data points across 12 retailers

10 retailers$1,154 NZD to $4,907 NZD

Retailer 1
-
$888 NZD
Price last confirmed 13 days ago
A
Retailer 2
-
$1,154 NZD
View
A
Retailer 3
-
$1,295 NZD
View
B+
Retailer 4
-
$1,411 NZD
View
A
Retailer 5
-
$1,443 NZD
View
A
Retailer 6
-
$1,575 NZD
View
A
Retailer 7
-
$1,898 NZD
View
B
Retailer 8
-
$3,467 NZD
View
B
Retailer 9
-
$4,315 NZD
View
Most Expensive
B
Brilliant Earth
8587033A · Nov 4
$4,907 NZD
$2,720 USD
View
9 more retailers have this diamond
Prices start from $1,154 NZDSave up to $3,752 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
3.08ct Cushion
$1,154 NZD