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Cushion|Lab Grown|IGI

4.30ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780662187

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG780662187

Diamond specifications and retailer prices

From $7,417 NZD
$4,180 USD
As of October 29, 2026
Save $21,463 NZD (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $28,879 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 4.3ct lab-grown cushion diamond

This 4.3ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780662187 or 780662187. Listed at 10 retailers as of October 29, 2026, with prices from $7,417 to $28,879, a $21,463 spread on the same certified stone. MOH London lists it at $28,879. 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

4.30
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662187
Dimensions11.06 × 8.64 × 5.74 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeLarge
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
11.06 mm8.64 mm4.30 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662187
Side View
Table 56.0%Crown 37.2°Girdle: STK-THKPavilion 40.7°Culet: LargeDepth 66.4%

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 29
Current: $28,879 NZD|Low: $7,417 NZD|High: $63,681 NZD|Avg: $25,829 NZD|-4.0%
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
Retailer 15
October 31, 2026
Retailer 11$7,417 NZD
Retailer 9$7,773 NZD
Retailer 8$11,196 NZD
Retailer 15$11,242 NZD
Retailer 3$12,658 NZD
Retailer 13$15,369 NZD
Retailer 2$15,374 NZD
Retailer 12$16,450 NZD
Retailer 14$17,369 NZD
Retailer 6$21,905 NZD
Retailer 10$23,630 NZD
MOH London$28,879 NZD
Retailer 4$41,306 NZD
Retailer 7$53,427 NZD
Retailer 5$63,681 NZD

31 data points across 15 retailers

10 retailers$7,417 NZD to $28,879 NZD

A
Cheapest Retailer
-
$7,417 NZD
$4,180 USD
A
Retailer 2
-
$7,773 NZD
$4,381 USD
View
A
Retailer 3
-
$11,196 NZD
$6,310 USD
View
A
Retailer 4
-
$11,242 NZD
$6,336 USD
View
Final sale: no returns
A
Retailer 5
-
$15,369 NZD
$8,662 USD
View
B+
Retailer 6
-
$15,374 NZD
$8,665 USD
View
B+
Retailer 7
-
$16,450 NZD
€8,830 EUR
View
B+
Retailer 8
-
$17,369 NZD
$9,789 USD
View
B+
Retailer 9
-
$23,630 NZD
$13,318 USD
View
Most Expensive
B+
MOH London
LG780662187 · Oct 29
$28,879 NZD
£12,816 GBP
View
9 more retailers have this diamond
Prices start from $7,417 NZDSave up to $21,463 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
4.30ct Cushion
$7,417 NZD