Marquise|Lab Grown|IGI

1.03ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG815697831

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG815697831

Diamond specifications and retailer prices

From $230 USD
As of October 30, 2026
Save $1,780 USD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,840 USD at Brilliant Earth · As of September 26, 2026
View at Brilliant Earth

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise 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 LG815697831 or 815697831. Listed at 22 retailers as of October 28, 2026, with a 774% 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

1.03
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815697831
Dimensions10.05 × 5.25 × 3.39 mm
L/W Ratio1.91
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
10.05 mm5.25 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815697831
Side View
Table 57.0%Crown 36.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 64.6%

Caratlytics Score

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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: $1,570 USD|Low: $230 USD|High: $2,750 USD|Avg: $763 USD|-42.9%
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
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Retailer 11
Retailer 12
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Retailer 20
October 31, 2026
Retailer 6$230 USD
Retailer 7$258 USD
Retailer 19$267 USD
Retailer 16$286 USD
Retailer 18$286 USD
Retailer 17$476 USD
Retailer 8$484 USD
Retailer 15$491 USD
Retailer 3$519 USD
Retailer 2$534 USD
Retailer 20$578 USD
Retailer 10$770 USD
Retailer 12$919 USD
Retailer 9$922 USD
Retailer 5$971 USD
Retailer 4$988 USD
Retailer 11$1,113 USD
Retailer 13$1,152 USD
Brilliant Earth$1,570 USD
Retailer 14$2,010 USD

32 data points across 20 retailers

22 retailers$230 USD to $2,010 USD

A
Cheapest Retailer
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$230 USD
A
Retailer 2
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$258 USD
View
Final sale: no returns
A
Retailer 3
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$267 USD
View
A
Retailer 4
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$286 USD
View
A
Retailer 5
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$286 USD
View
A
Retailer 6
-
$476 USD
€453 EUR
View
A
Retailer 7
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$484 USD
View
A
Retailer 8
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$491 USD
ZAR 7,932 ZAR
View
A
Retailer 9
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$519 USD
View
A
Retailer 10
-
$534 USD
£421 GBP
View
A
Retailer 11
-
$578 USD
View
B+
Retailer 12
-
$770 USD
SGD 1,041 SGD
View
Retailer 13
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$847 USD
View
Price last confirmed 25 days ago
B+
Retailer 14
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$919 USD
View
B+
Retailer 15
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$922 USD
View
B+
Retailer 16
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$971 USD
View
B+
Retailer 17
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$988 USD
View
B+
Retailer 18
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$1,113 USD
£876 GBP
View
B+
Retailer 19
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$1,152 USD
£907 GBP
View
B
Retailer 20
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$1,570 USD
View
B
Retailer 21
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$2,010 USD
View
Most Expensive
Brilliant Earth
20792512A · Sep 26
$2,840 USD
View
Price last confirmed 34 days ago
21 more retailers have this diamond
Prices start from $230 USDSave up to $1,780 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
1.03ct Marquise
$230 USD