CaratHunter
Plans
Oval|Lab Grown|IGI

6.40ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG768629380

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG768629380

Diamond specifications and retailer prices

From HK$174,143 HKD
$22,196 USD
As of October 31, 2026
Save HK$269,291 HKD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$443,434 HKD at Yorxs · As of October 31, 2026
View at Yorxs

About this 6.4ct lab-grown oval diamond

This 6.4ct lab-grown oval 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 LG768629380 or 768629380. Listed at 11 retailers as of October 31, 2026, with prices from HK$174,143 to HK$443,434, a HK$269,291 spread on the same certified stone. Yorxs lists it at HK$443,434. 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

6.40
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629380
Dimensions15.11 × 10.48 × 6.45 mm
L/W Ratio1.44
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
15.11 mm10.48 mm6.40 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629380
Side View
Table 59.0%Crown 34.2°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$363,578 HKD|Low: HK$159,569 HKD|High: HK$729,085 HKD|Avg: HK$321,310 HKD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Yorxs
October 31, 2026
Retailer 12HK$174,143 HKD
Retailer 6HK$175,901 HKD
Retailer 2HK$180,579 HKD
Retailer 10HK$192,047 HKD
Retailer 8HK$225,988 HKD
Retailer 4HK$243,631 HKD
Retailer 5HK$282,451 HKD
Retailer 7HK$292,017 HKD
Retailer 9HK$296,089 HKD
Retailer 1HK$363,578 HKD
YorxsHK$443,434 HKD
Retailer 3HK$567,573 HKD
Retailer 11HK$729,085 HKD

29 data points across 13 retailers

11 retailersHK$174,143 HKD to HK$443,434 HKD

B+
Cheapest Retailer
-
HK$174,143 HKD
$22,196 USD
B+
Retailer 2
-
HK$175,901 HKD
$22,420 USD
View
B+
Retailer 3
-
HK$192,047 HKD
$24,478 USD
View
B+
Retailer 4
-
HK$225,988 HKD
$28,804 USD
View
B+
Retailer 5
-
HK$282,451 HKD
£28,347 GBP
View
B+
Retailer 6
-
HK$292,017 HKD
$37,220 USD
View
B
Retailer 7
-
HK$296,089 HKD
$37,739 USD
View
B
Retailer 8
-
HK$363,578 HKD
£36,489 GBP
View
Most Expensive
B
Yorxs
527156209 · Oct 31
HK$443,434 HKD
€53,828 EUR
View
8 more retailers have this diamond
Prices start from HK$174,143 HKDSave up to HK$269,291 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.

B+
6.40ct Oval
HK$174,143 HKD