Marquise|Lab Grown|IGI

0.51ct D FL Marquise Lab Grown Diamond

VG • D/FL • IGI LG845658670

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845658670

Diamond specifications and retailer prices

From $225 USD
As of October 30, 2026
Save $974 USD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,199 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG845658670 or 845658670. Listed at 12 retailers as of October 30, 2026, with prices from $225 to $1,199, a $974 spread on the same certified stone. Reve Diamonds lists it at $1,199. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845658670
Dimensions7.99 × 4.13 × 2.59 mm
L/W Ratio1.93
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
7.99 mm4.13 mm0.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845658670
Side View
Table 59.0%Crown 35.1°Girdle: Slightly ThickPavilion 39.4°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $807 USD|Low: $225 USD|High: $1,199 USD|Avg: $590 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 31, 2026
Retailer 5$225 USD
Retailer 8$282 USD
Retailer 11$360 USD
Retailer 9$433 USD
Retailer 4$450 USD
Retailer 10$452 USD
Retailer 6$459 USD
Retailer 3$679 USD
Retailer 1$807 USD
Retailer 2$858 USD
Retailer 7$1,176 USD
Reve Diamonds$1,199 USD

5 data points across 12 retailers

12 retailers$225 USD to $1,199 USD

A
Cheapest Retailer
-
$225 USD
Final sale: no returns
A
Retailer 2
-
$282 USD
HK$2,200 HKD
View
A
Retailer 3
-
$360 USD
View
B+
Retailer 4
-
$433 USD
View
B+
Retailer 5
-
$450 USD
View
B+
Retailer 6
-
$452 USD
ZAR 7,307 ZAR
View
B+
Retailer 7
-
$459 USD
£362 GBP
View
B
Retailer 8
-
$679 USD
SGD 917 SGD
View
B
Retailer 9
-
$807 USD
View
B
Retailer 10
-
$858 USD
View
B
Retailer 11
-
$1,176 USD
£926 GBP
View
Most Expensive
B
Reve Diamonds
2828CD641 · Oct 30
$1,199 USD
View
11 more retailers have this diamond
Prices start from $225 USDSave up to $974 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
0.51ct Marquise
$225 USD