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Cushion|Lab Grown|IGI

1.78ct H VVS2 Cushion Lab Grown Diamond

EX • H/VVS2 • IGI LG728521939

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG728521939

Diamond specifications and retailer prices

From $652 USD
€621 EUR
As of October 29, 2026
Save $1,026 USD (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,678 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.78ct lab-grown cushion diamond

This 1.78ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728521939 or 728521939. Listed at 8 retailers as of October 26, 2026, with prices from $652 to $1,678, a $1,026 spread on the same certified stone. MOH London lists it at $1,678. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
H
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728521939
Dimensions6.94 × 6.90 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.94 mm6.90 mm1.78 ctH / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728521939
Side View
Table 61.0%Crown 45.5°Girdle: MED-THKPavilion 31.9°Culet: NoneDepth 65.6%

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: $1,678 USD|Low: $512 USD|High: $1,695 USD|Avg: $909 USD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$512 USD
Retailer 8$570 USD
Retailer 2$652 USD
Retailer 4$675 USD
Retailer 5$685 USD
Retailer 6$694 USD
Retailer 7$1,120 USD
Retailer 3$1,175 USD
Retailer 9$1,387 USD
MOH London$1,678 USD

18 data points across 10 retailers

8 retailers$652 USD to $1,678 USD

Retailer 1
-
$512 USD
HK$4,000 HKD
Price last confirmed 56 days ago
A
Retailer 2
-
$652 USD
€621 EUR
View
A
Retailer 3
-
$675 USD
View
A
Retailer 4
-
$685 USD
View
A
Retailer 5
-
$694 USD
View
B+
Retailer 6
-
$1,175 USD
View
B
Retailer 7
-
$1,387 USD
View
Most Expensive
B
MOH London
LG728521939 · Oct 26
$1,678 USD
£1,321 GBP
View
7 more retailers have this diamond
Prices start from $652 USDSave up to $1,026 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
1.78ct Cushion
$652 USD