CaratHunter
Plans
Marquise|Lab Grown|IGI

5.10ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG768628620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768628620

Diamond specifications and retailer prices

From $26,425 USD
As of October 28, 2026
Save $20,487 USD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $46,912 USD at 77 Diamonds · As of October 29, 2026
View at 77 Diamonds

About this 5.1ct lab-grown marquise diamond

This 5.1ct lab-grown marquise sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768628620 or 768628620. Listed at 11 retailers as of October 28, 2026, with prices from $26,425 to $46,912, a $20,487 spread on the same certified stone. 77 Diamonds lists it at $46,912. 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

5.10
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768628620
Dimensions18.31 × 8.94 × 5.47 mm
L/W Ratio2.05
Girdle conditionFaceted
Culet sizePointed
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
18.31 mm8.94 mm5.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768628620
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 61.2%

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 28
Current: $46,912 USD|Low: $26,425 USD|High: $130,152 USD|Avg: $54,235 USD|-5.1%
77 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
November 1, 2026
Retailer 8$26,425 USD
Retailer 13$30,468 USD
Retailer 3$32,255 USD
Retailer 11$33,986 USD
Retailer 7$35,570 USD
Retailer 5$35,917 USD
Retailer 9$40,250 USD
77 Diamonds$46,912 USD
Retailer 10$52,531 USD
Retailer 2$56,195 USD
Retailer 6$79,387 USD
Retailer 4$95,896 USD
Retailer 12$130,152 USD

24 data points across 13 retailers

11 retailers$26,425 USD to $46,912 USD

A
Cheapest Retailer
-
$26,425 USD
B+
Retailer 2
-
$30,468 USD
View
B+
Retailer 3
-
$33,986 USD
View
B+
Retailer 4
-
$35,570 USD
View
B+
Retailer 5
-
$40,250 USD
View
Most Expensive
B+
77 Diamonds
MQPUIFSYCXTCPJW · Oct 29
$46,912 USD
£36,939 GBP
View
5 more retailers have this diamond
Prices start from $26,425 USDSave up to $20,487 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
5.10ct Marquise
$26,425 USD