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Cushion|Lab Grown|IGI

1.88ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG727510778

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG727510778

Diamond specifications and retailer prices

From $706 AUD
$496 USD
As of November 1, 2026
Save $4,789 AUD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,495 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.88ct lab-grown cushion diamond

This 1.88ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727510778 or 727510778. Listed at 13 retailers as of October 31, 2026, with prices from $706 to $5,495, a $4,789 spread on the same certified stone. Brilliant Earth lists it at $5,495. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.88
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727510778
Dimensions8.08 × 6.70 × 4.59 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
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
8.08 mm6.70 mm1.88 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727510778
Side View
Table 61.0%Crown 35.7°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 68.5%

Caratlytics Score

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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 1
Current: $5,495 AUD|Low: $706 AUD|High: $6,534 AUD|Avg: $2,677 AUD|-15.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 5$706 AUD
Retailer 9$950 AUD
Retailer 13$1,025 AUD
Retailer 11$1,129 AUD
Retailer 7$1,227 AUD
Retailer 3$1,737 AUD
Retailer 8$1,829 AUD
Retailer 12$2,100 AUD
Retailer 6$2,886 AUD
Retailer 4$4,631 AUD
Retailer 2$4,648 AUD
Retailer 10$5,096 AUD
Brilliant Earth$5,495 AUD

31 data points across 13 retailers

13 retailers$706 AUD to $5,495 AUD

A
Cheapest Retailer
-
$706 AUD
$496 USD
Final sale: no returns
A
Retailer 2
-
$950 AUD
$667 USD
View
A
Retailer 3
-
$1,025 AUD
$720 USD
View
A
Retailer 4
-
$1,129 AUD
$793 USD
View
A
Retailer 5
-
$1,227 AUD
€821 EUR
View
A
Retailer 6
-
$1,737 AUD
$1,220 USD
View
A
Retailer 7
-
$1,829 AUD
View
A
Retailer 8
-
$2,100 AUD
$1,475 USD
View
B+
Retailer 9
-
$2,886 AUD
£1,596 GBP
View
Retailer 10
-
$4,631 AUD
View
Price last confirmed 24 days ago
B+
Retailer 11
-
$4,648 AUD
$3,265 USD
View
B
Retailer 12
-
$5,096 AUD
$3,580 USD
View
Most Expensive
B
Brilliant Earth
15510545Y · Oct 31
$5,495 AUD
$3,860 USD
View
12 more retailers have this diamond
Prices start from $706 AUDSave up to $4,789 AUD

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
1.88ct Cushion
$706 AUD