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Marquise|Lab Grown|IGI

1.29ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG800680019

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800680019

Diamond specifications and retailer prices

From $781 USD
HK$6,100 HKD
As of October 31, 2026
Save $2,399 USD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,180 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.29ct lab-grown marquise diamond

This 1.29ct 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 LG800680019 or 800680019. Listed at 13 retailers as of October 31, 2026, with prices from $781 to $3,180, a $2,399 spread on the same certified stone. Brilliant Earth lists it at $3,180. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800680019
Dimensions11.17 × 5.68 × 3.56 mm
L/W Ratio1.97
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
11.17 mm5.68 mm1.29 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800680019
Side View
Table 59.0%Crown 34.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.7%

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 31
Current: $3,180 USD|Low: $781 USD|High: $3,570 USD|Avg: $1,747 USD|-10.9%
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
October 31, 2026
Retailer 3$781 USD
Retailer 9$883 USD
Retailer 13$952 USD
Retailer 12$962 USD
Retailer 6$1,037 USD
Retailer 2$1,051 USD
Retailer 5$1,188 USD
Retailer 11$1,589 USD
Retailer 10$2,190 USD
Retailer 8$2,565 USD
Retailer 4$2,666 USD
Retailer 7$2,821 USD
Brilliant Earth$3,180 USD

39 data points across 13 retailers

13 retailers$781 USD to $3,180 USD

A
Cheapest Retailer
-
$781 USD
HK$6,100 HKD
A
Retailer 2
-
$883 USD
View
A
Retailer 3
-
$952 USD
View
A
Retailer 4
-
$962 USD
View
A
Retailer 5
-
$1,037 USD
€988 EUR
View
A
Retailer 6
-
$1,051 USD
£828 GBP
View
B+
Retailer 7
-
$1,188 USD
A$1,828 AUD
View
Retailer 8
-
$1,589 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$2,190 USD
View
Retailer 10
-
$2,565 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
$2,666 USD
View
B
Retailer 12
-
$2,821 USD
£2,221 GBP
View
Most Expensive
B
Brilliant Earth
21143425A · Oct 31
$3,180 USD
View
12 more retailers have this diamond
Prices start from $781 USDSave up to $2,399 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
1.29ct Marquise
$781 USD