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Marquise|Lab Grown|IGI

1.45ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780666091

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780666091

Diamond specifications and retailer prices

From $600 NZD
As of November 4, 2026
Save $4,722 NZD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,094 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.45ct lab-grown marquise diamond

This 1.45ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780666091 or 780666091. Listed at 16 retailers as of November 4, 2026, with a 788% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780666091
Dimensions11.25 × 6.00 × 3.69 mm
L/W Ratio1.88
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
11.25 mm6.00 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780666091
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.5%

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: Nov 4
Current: $6,094 NZD|Low: $600 NZD|High: $7,220 NZD|Avg: $2,874 NZD|+1.5%
Rare Carat
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 13$600 NZD
Retailer 5$695 NZD
Retailer 8$912 NZD
Retailer 14$1,032 NZD
Retailer 6$1,100 NZD
Retailer 17$1,197 NZD
Retailer 11$1,387 NZD
Retailer 7$1,543 NZD
Retailer 12$1,749 NZD
Retailer 15$2,178 NZD
Retailer 4$2,260 NZD
Retailer 3$2,636 NZD
Retailer 2$3,202 NZD
Retailer 10$4,879 NZD
Retailer 16$5,322 NZD
Rare Carat$6,094 NZD
Retailer 9$6,339 NZD

31 data points across 17 retailers

16 retailers$600 NZD to $5,322 NZD

A
Cheapest Retailer
-
$600 NZD
A
Retailer 2
-
$695 NZD
View
A
Retailer 3
-
$912 NZD
View
Final sale: no returns
A
Retailer 4
-
$1,032 NZD
View
A
Retailer 5
-
$1,100 NZD
View
A
Retailer 6
-
$1,197 NZD
View
A
Retailer 7
-
$1,387 NZD
View
A
Retailer 8
-
$1,543 NZD
View
A
Retailer 9
-
$1,749 NZD
View
B+
Retailer 10
-
$2,178 NZD
View
B+
Retailer 11
-
$2,260 NZD
View
B+
Retailer 12
-
$2,636 NZD
View
B+
Retailer 13
-
$3,202 NZD
View
B
Retailer 14
-
$4,879 NZD
View
B
Retailer 15
-
$5,322 NZD
View
Most Expensive
Rare Carat
P82T-34B · Oct 28
$6,094 NZD
$3,435 USD
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from $600 NZDSave up to $4,722 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
1.45ct Marquise
$600 NZD