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Cushion|Lab Grown|IGI

1.03ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG818663200

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

Certificate IGI LG818663200

Diamond specifications and retailer prices

From $733 NZD
$413 USD
As of October 30, 2026
Save $3,526 NZD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,258 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663200 or 818663200. Listed at 14 retailers as of October 30, 2026, with prices from $733 to $4,258, a $3,526 spread on the same certified stone. Brilliant Earth lists it at $4,258. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663200
Dimensions5.98 × 5.93 × 3.83 mm
L/W Ratio1.01
Girdle conditionFaceted
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
5.98 mm5.93 mm1.03 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663200
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 64.6%

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: Oct 30
Current: $4,258 NZD|Low: $527 NZD|High: $4,755 NZD|Avg: $1,841 NZD|-10.4%
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
Retailer 14
October 31, 2026
Retailer 12$733 NZD
Retailer 6$818 NZD
Retailer 11$1,111 NZD
Retailer 4$1,118 NZD
Retailer 13$1,297 NZD
Retailer 2$1,304 NZD
Retailer 3$1,361 NZD
Retailer 9$1,396 NZD
Retailer 7$1,467 NZD
Retailer 5$2,431 NZD
Retailer 14$2,682 NZD
Retailer 10$3,076 NZD
Retailer 8$3,191 NZD
Brilliant Earth$4,258 NZD

36 data points across 14 retailers

14 retailers$733 NZD to $4,258 NZD

A
Cheapest Retailer
-
$733 NZD
$413 USD
Final sale: no returns
Retailer 2
-
$818 NZD
$461 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$1,111 NZD
$626 USD
View
A
Retailer 4
-
$1,118 NZD
$630 USD
View
A
Retailer 5
-
$1,297 NZD
$731 USD
View
A
Retailer 6
-
$1,304 NZD
€700 EUR
View
A
Retailer 7
-
$1,361 NZD
$767 USD
View
A
Retailer 8
-
$1,396 NZD
ZAR 12,711 ZAR
View
A
Retailer 9
-
$1,467 NZD
£651 GBP
View
Retailer 10
-
$2,431 NZD
$1,370 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
$2,682 NZD
$1,511 USD
View
B
Retailer 12
-
$3,076 NZD
$1,734 USD
View
B+
Retailer 13
-
$3,191 NZD
£1,416 GBP
View
Most Expensive
B
Brilliant Earth
21242362A · Oct 30
$4,258 NZD
$2,400 USD
View
13 more retailers have this diamond
Prices start from $733 NZDSave up to $3,526 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
1.03ct Cushion
$733 NZD