Round|Lab Grown|IGI

5.51ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG787621675

Shape and cutting style on the report: Round brilliant

Certificate IGI LG787621675

Diamond specifications and retailer prices

From $11,770 CAD
$8,426 USD
As of October 30, 2026
Save $41,995 CAD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $53,765 CAD at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round 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 LG787621675 or 787621675. Listed at 12 retailers as of October 30, 2026, with prices from $11,770 to $53,765, a $41,995 spread on the same certified stone. With Clarity lists it at $53,765. 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

5.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787621675
Dimensions11.31 × 11.38 × 7.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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
11.31 mm11.38 mm5.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787621675
Side View
Table 56.0%Crown 34.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.8%

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 30
Current: $15,905 CAD|Low: $11,582 CAD|High: $53,818 CAD|Avg: $26,284 CAD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
November 1, 2026
Retailer 7$11,770 CAD
Retailer 3$13,180 CAD
Retailer 10$13,860 CAD
Retailer 8$14,412 CAD
Retailer 1$15,905 CAD
Retailer 11$16,583 CAD
Retailer 4$22,142 CAD
Retailer 6$24,738 CAD
Retailer 5$32,967 CAD
Retailer 2$37,185 CAD
Retailer 9$42,742 CAD
With Clarity$53,818 CAD

41 data points across 12 retailers

12 retailers$11,770 CAD to $53,765 CAD

A
Cheapest Retailer
-
$11,770 CAD
$8,426 USD
Retailer 2
-
$13,180 CAD
$9,435 USD
View
Price last confirmed 76 days ago
A
Retailer 3
-
$13,860 CAD
$9,922 USD
View
A
Retailer 4
-
$14,412 CAD
HK$80,600 HKD
View
A
Retailer 5
-
$15,905 CAD
£8,965 GBP
View
A
Retailer 6
-
$16,583 CAD
$11,871 USD
View
A
Retailer 7
-
$22,142 CAD
€15,096 EUR
View
B+
Retailer 8
-
$24,738 CAD
£13,944 GBP
View
B+
Retailer 9
-
$32,967 CAD
$23,600 USD
View
Retailer 10
-
$37,185 CAD
$26,620 USD
View
Price last confirmed 33 days ago
B
Retailer 11
-
$42,742 CAD
$30,598 USD
View
Most Expensive
B
With Clarity
787621675 · Oct 31
$53,765 CAD
$38,489 USD
View
11 more retailers have this diamond
Prices start from $11,770 CADSave up to $41,995 CAD

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
5.51ct Round
$11,770 CAD