Marquise|Lab Grown|IGI

3.03ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG812620152

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812620152

Diamond specifications and retailer prices

From $3,801 USD
As of November 3, 2026
Save $10,932 USD (74%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $14,733 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.03ct lab-grown marquise diamond

This 3.03ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620152 or 812620152. Listed at 23 retailers as of October 31, 2026, with prices from $3,801 to $14,733, a $10,932 spread on the same certified stone. Taylor and Hart lists it at $14,733. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.03
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620152
Dimensions14.87 × 7.46 × 4.69 mm
L/W Ratio1.99
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
14.87 mm7.46 mm3.03 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620152
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $5,541 USD|Low: $3,801 USD|High: $14,733 USD|Avg: $7,655 USD|-4.3%
Retailer 1
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
Taylor and Hart
November 4, 2026
Retailer 16$3,801 USD
Retailer 3$4,035 USD
Retailer 4$4,335 USD
Retailer 14$5,140 USD
Retailer 1$5,541 USD
Retailer 8$6,050 USD
Retailer 5$6,345 USD
Retailer 2$6,416 USD
Retailer 6$7,071 USD
Retailer 7$7,590 USD
Retailer 12$8,952 USD
Retailer 13$9,530 USD
Retailer 10$9,733 USD
Retailer 11$10,506 USD
Retailer 9$11,081 USD
Retailer 15$12,167 USD
Taylor and Hart$14,733 USD

37 data points across 17 retailers

23 retailers$3,801 USD to $14,733 USD

Retailer 1
-
$3,783 USD
Price last confirmed 27 days ago
A
Retailer 2
-
$3,801 USD
View
Retailer 3
-
$3,965 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$4,035 USD
View
Final sale: no returns
Retailer 5
-
$4,328 USD
View
Price last confirmed 40 days ago
A
Retailer 6
-
$4,335 USD
View
Retailer 7
-
$4,389 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$4,389 USD
View
Price last confirmed 24 days ago
A
Retailer 9
-
$5,140 USD
View
Retailer 10
-
$5,484 USD
View
Price last confirmed 35 days ago
A
Retailer 11
-
$5,541 USD
View
B+
Retailer 12
-
$6,050 USD
View
A
Retailer 13
-
$6,345 USD
View
B+
Retailer 14
-
$6,416 USD
View
Retailer 15
-
$7,071 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
$7,590 USD
View
B+
Retailer 17
-
$8,952 USD
View
B+
Retailer 18
-
$9,530 USD
View
B+
Retailer 19
-
$9,733 USD
View
B+
Retailer 20
-
$10,506 USD
View
B
Retailer 21
-
$11,081 USD
View
B
Retailer 22
-
$12,167 USD
View
Most Expensive
B
Taylor and Hart
12TYNW7 · Oct 31
$14,733 USD
View
22 more retailers have this diamond
Prices start from $3,801 USDSave up to $10,932 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
3.03ct Marquise
$3,801 USD