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Round|Lab Grown|IGI

0.99ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG840635088

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840635088

Diamond specifications and retailer prices

From $306 AUD
$215 USD
As of November 1, 2026
Save $2,292 AUD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,598 AUD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840635088 or 840635088. Listed at 21 retailers as of November 1, 2026, with prices from $306 to $2,598, a $2,292 spread on the same certified stone. Helzberg Diamonds lists it at $2,598. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.99
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635088
Dimensions6.39 × 6.43 × 3.90 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.39 mm6.43 mm0.99 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635088
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,598 AUD|Low: $306 AUD|High: $2,598 AUD|Avg: $944 AUD
Helzberg 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 8$306 AUD
Retailer 9$343 AUD
Retailer 11$354 AUD
Retailer 5$379 AUD
Retailer 20$379 AUD
Retailer 4$530 AUD
Retailer 15$587 AUD
Retailer 18$638 AUD
Retailer 7$651 AUD
Retailer 2$689 AUD
Retailer 16$701 AUD
Retailer 3$712 AUD
Retailer 10$1,027 AUD
Retailer 6$1,219 AUD
Retailer 21$1,223 AUD
Retailer 14$1,295 AUD
Retailer 12$1,300 AUD
Retailer 13$1,431 AUD
Retailer 19$1,528 AUD
Retailer 17$1,708 AUD
Helzberg Diamonds$2,598 AUD

14 data points across 21 retailers

21 retailers$306 AUD to $2,598 AUD

A
Cheapest Retailer
-
$306 AUD
$215 USD
A
Retailer 2
-
$343 AUD
$241 USD
View
Final sale: no returns
A
Retailer 3
-
$354 AUD
$249 USD
View
A
Retailer 4
-
$379 AUD
$266 USD
View
Retailer 5
-
$379 AUD
$266 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$530 AUD
$372 USD
View
A
Retailer 7
-
$587 AUD
£325 GBP
View
A
Retailer 8
-
$638 AUD
€427 EUR
View
A
Retailer 9
-
$651 AUD
$457 USD
View
A
Retailer 10
-
$689 AUD
ZAR 7,821 ZAR
View
A
Retailer 11
-
$701 AUD
£388 GBP
View
A
Retailer 12
-
$712 AUD
$500 USD
View
B+
Retailer 13
-
$1,027 AUD
SGD 975 SGD
View
B+
Retailer 14
-
$1,219 AUD
$856 USD
View
B+
Retailer 15
-
$1,223 AUD
$859 USD
View
B+
Retailer 16
-
$1,295 AUD
$909 USD
View
B+
Retailer 17
-
$1,300 AUD
$913 USD
View
B+
Retailer 18
-
$1,431 AUD
$1,005 USD
View
B
Retailer 19
-
$1,528 AUD
£845 GBP
View
B+
Retailer 20
-
$1,708 AUD
$1,200 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLGOO · Nov 1
$2,598 AUD
$1,825 USD
View
20 more retailers have this diamond
Prices start from $306 AUDSave up to $2,292 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.

A
0.99ct Round
$306 AUD