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Oval|Lab Grown|IGI

6.55ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754507999

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754507999

Diamond specifications and retailer prices

From $29,189 AUD
As of November 1, 2026
Save $56,192 AUD (66%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $85,381 AUD at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

About this 6.55ct lab-grown oval diamond

This 6.55ct lab-grown oval sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754507999 or 754507999. Listed at 14 retailers as of November 1, 2026, with prices from $29,189 to $85,381, a $56,192 spread on the same certified stone. Cape Diamonds lists it at $85,381. 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

6.55
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754507999
Dimensions14.78 × 10.55 × 6.64 mm
L/W Ratio1.40
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
14.78 mm10.55 mm6.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754507999
Side View
Table 61.0%Crown 36.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $85,381 AUD|Low: $27,560 AUD|High: $164,445 AUD|Avg: $68,970 AUD|+2.2%
Cape 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
Retailer 14
November 3, 2026
Retailer 10$29,189 AUD
Retailer 5$30,425 AUD
Retailer 3$33,028 AUD
Retailer 12$39,366 AUD
Retailer 9$47,808 AUD
Retailer 11$49,587 AUD
Retailer 7$60,640 AUD
Retailer 2$62,809 AUD
Retailer 13$71,671 AUD
Retailer 8$75,046 AUD
Cape Diamonds$85,381 AUD
Retailer 6$97,532 AUD
Retailer 4$123,388 AUD
Retailer 14$164,445 AUD

30 data points across 14 retailers

14 retailers$29,189 AUD to $85,381 AUD

B+
Cheapest Retailer
-
$29,189 AUD
B+
Retailer 2
-
$30,425 AUD
View
B+
Retailer 3
-
$33,028 AUD
View
B+
Retailer 4
-
$39,366 AUD
View
Retailer 5
-
$47,808 AUD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$49,587 AUD
View
B
Retailer 7
-
$60,640 AUD
View
B
Retailer 8
-
$62,809 AUD
View
B
Retailer 9
-
$71,671 AUD
View
B
Retailer 10
-
$75,046 AUD
View
Most Expensive
B
Cape Diamonds
cert_754507999 · Nov 3
$85,381 AUD
ZAR 963,297 ZAR
View
10 more retailers have this diamond
Prices start from $29,189 AUDSave up to $56,192 AUD

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+
6.55ct Oval
$29,189 AUD