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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 $880 NZD
$496 USD
As of November 1, 2026
Save $5,969 NZD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,849 NZD 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 $880 to $6,849, a $5,969 spread on the same certified stone. Brilliant Earth lists it at $6,849. 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

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 1
Current: $6,849 NZD|Low: $880 NZD|High: $8,144 NZD|Avg: $3,336 NZD|-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$880 NZD
Retailer 9$1,183 NZD
Retailer 13$1,277 NZD
Retailer 11$1,407 NZD
Retailer 7$1,530 NZD
Retailer 3$2,165 NZD
Retailer 8$2,280 NZD
Retailer 12$2,618 NZD
Retailer 6$3,596 NZD
Retailer 4$5,772 NZD
Retailer 2$5,793 NZD
Retailer 10$6,352 NZD
Brilliant Earth$6,849 NZD

31 data points across 13 retailers

13 retailers$880 NZD to $6,849 NZD

A
Cheapest Retailer
-
$880 NZD
$496 USD
Final sale: no returns
A
Retailer 2
-
$1,183 NZD
$667 USD
View
A
Retailer 3
-
$1,277 NZD
$720 USD
View
A
Retailer 4
-
$1,407 NZD
$793 USD
View
A
Retailer 5
-
$1,530 NZD
€821 EUR
View
A
Retailer 6
-
$2,165 NZD
$1,220 USD
View
A
Retailer 7
-
$2,280 NZD
A$1,977 AUD
View
A
Retailer 8
-
$2,618 NZD
$1,475 USD
View
B+
Retailer 9
-
$3,596 NZD
£1,596 GBP
View
Retailer 10
-
$5,772 NZD
A$5,005 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$5,793 NZD
$3,265 USD
View
B
Retailer 12
-
$6,352 NZD
$3,580 USD
View
Most Expensive
B
Brilliant Earth
15510545Y · Oct 31
$6,849 NZD
$3,860 USD
View
12 more retailers have this diamond
Prices start from $880 NZDSave up to $5,969 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
1.88ct Cushion
$880 NZD