CaratHunter
Plans
Princess|Lab Grown|IGI

1.78ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG830625275

Shape and cutting style on the report: Princess cut

Certificate IGI LG830625275

Diamond specifications and retailer prices

From $760 USD
As of October 30, 2026
Save $5,990 USD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,750 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.78ct lab-grown princess diamond

This 1.78ct lab-grown princess sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830625275 or 830625275. Listed at 16 retailers as of October 30, 2026, with prices from $760 to $6,750, a $5,990 spread on the same certified stone. Do Amore Diamonds lists it at $6,750. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830625275
Dimensions6.83 × 6.60 × 4.60 mm
L/W Ratio1.03
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
6.83 mm6.60 mm1.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830625275
Side View
Table 67.0%Crown 41.3°Girdle: MediumPavilion 37.2°Culet: NoneDepth 69.7%

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 30
Current: $6,750 USD|Low: $760 USD|High: $9,760 USD|Avg: $3,413 USD|-30.8%
Do Amore Diamonds
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
Retailer 18
October 30, 2026
Retailer 13$760 USD
Retailer 7$1,017 USD
Retailer 2$1,039 USD
Retailer 14$1,199 USD
Retailer 5$1,240 USD
Retailer 12$1,426 USD
Retailer 15$1,639 USD
Retailer 18$1,651 USD
Retailer 6$2,244 USD
Retailer 4$2,412 USD
Retailer 3$2,569 USD
Retailer 17$3,471 USD
Retailer 16$3,666 USD
Retailer 8$3,695 USD
Retailer 11$4,700 USD
Retailer 9$4,701 USD
Do Amore Diamonds$6,750 USD
Retailer 10$7,542 USD

34 data points across 18 retailers

16 retailers$760 USD to $6,750 USD

A
Cheapest Retailer
-
$760 USD
A
Retailer 2
-
$1,017 USD
View
A
Retailer 3
-
$1,039 USD
View
A
Retailer 4
-
$1,199 USD
View
A
Retailer 5
-
$1,240 USD
View
A
Retailer 6
-
$1,426 USD
View
A
Retailer 7
-
$1,486 USD
View
A
Retailer 8
-
$1,639 USD
€1,561 EUR
View
B+
Retailer 9
-
$2,244 USD
View
B+
Retailer 10
-
$2,412 USD
View
B+
Retailer 11
-
$2,569 USD
View
B+
Retailer 12
-
$3,471 USD
View
B+
Retailer 13
-
$3,666 USD
£2,887 GBP
View
Retailer 14
-
$3,695 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
$4,700 USD
View
Most Expensive
B
Do Amore Diamonds
27-A12EBBE9A · Oct 30
$6,750 USD
View
15 more retailers have this diamond
Prices start from $760 USDSave up to $5,990 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 Princess
$760 USD