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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 HK$66,108 HKD
$8,426 USD
As of November 1, 2026
Save HK$235,865 HKD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$301,973 HKD at With Clarity · As of November 2, 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 November 1, 2026, with prices from HK$66,108 to HK$301,973, a HK$235,865 spread on the same certified stone. With Clarity lists it at HK$301,973. 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
Colour
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: Nov 1
Current: HK$89,332 HKD|Low: HK$65,049 HKD|High: HK$302,271 HKD|Avg: HK$150,011 HKD|+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 2, 2026
Retailer 7HK$66,108 HKD
Retailer 3HK$74,028 HKD
Retailer 10HK$77,845 HKD
Retailer 8HK$80,943 HKD
Retailer 1HK$89,332 HKD
Retailer 11HK$93,136 HKD
Retailer 5HK$124,361 HKD
Retailer 4HK$138,191 HKD
Retailer 6HK$185,159 HKD
Retailer 2HK$208,852 HKD
Retailer 9HK$240,062 HKD
With ClarityHK$302,271 HKD

41 data points across 12 retailers

12 retailersHK$66,108 HKD to HK$301,973 HKD

A
Cheapest Retailer
-
HK$66,108 HKD
$8,426 USD
Retailer 2
-
HK$74,028 HKD
$9,435 USD
View
Price last confirmed 77 days ago
A
Retailer 3
-
HK$77,845 HKD
$9,922 USD
View
A
Retailer 4
-
HK$80,943 HKD
View
A
Retailer 5
-
HK$89,332 HKD
£8,965 GBP
View
A
Retailer 6
-
HK$93,136 HKD
$11,871 USD
View
A
Retailer 7
-
HK$124,361 HKD
€15,096 EUR
View
B+
Retailer 8
-
HK$138,191 HKD
£13,869 GBP
View
B+
Retailer 9
-
HK$185,159 HKD
$23,600 USD
View
Retailer 10
-
HK$208,852 HKD
$26,620 USD
View
Price last confirmed 34 days ago
B
Retailer 11
-
HK$240,062 HKD
$30,598 USD
View
Most Expensive
B
With Clarity
787621675 · Nov 2
HK$301,973 HKD
$38,489 USD
View
11 more retailers have this diamond
Prices start from HK$66,108 HKDSave up to HK$235,865 HKD

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
HK$66,108 HKD