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Round|Lab Grown|IGI

1.68ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG812621483

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812621483

Diamond specifications and retailer prices

From $569 AUD
$400 USD
As of October 30, 2026
Save $3,402 AUD (86%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,972 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.68ct lab-grown round diamond

This 1.68ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812621483 or 812621483. Listed at 26 retailers as of October 30, 2026, with prices from $569 to $3,972, a $3,402 spread on the same certified stone. Brilliant Earth lists it at $3,972. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.68
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812621483
Dimensions7.63 × 7.69 × 4.74 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
7.63 mm7.69 mm1.68 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812621483
Side View
Table 56.0%Crown 34.9°Girdle: THN-MEDPavilion 41.1°Culet: NoneDepth 61.9%

Caratlytics Score

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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: Oct 30
Current: $3,972 AUD|Low: $569 AUD|High: $4,598 AUD|Avg: $1,769 AUD|-13.6%
Brilliant Earth
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
November 1, 2026
Retailer 5$569 AUD
Retailer 10$890 AUD
Retailer 16$890 AUD
Retailer 12$1,019 AUD
Retailer 15$1,085 AUD
Retailer 8$1,110 AUD
Retailer 2$1,125 AUD
Retailer 6$1,440 AUD
Retailer 14$1,466 AUD
Retailer 11$1,559 AUD
Retailer 3$1,670 AUD
Retailer 7$2,088 AUD
Retailer 4$2,385 AUD
Retailer 17$2,416 AUD
Retailer 13$2,481 AUD
Retailer 9$3,481 AUD
Brilliant Earth$3,972 AUD

35 data points across 17 retailers

26 retailers$569 AUD to $3,972 AUD

Retailer 1
-
$517 AUD
$363 USD
Price last confirmed 21 days ago
Retailer 2
-
$538 AUD
$378 USD
View
Price last confirmed 39 days ago
A
Retailer 3
-
$569 AUD
$400 USD
View
Final sale: no returns
Retailer 4
-
$602 AUD
$423 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$641 AUD
$450 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$641 AUD
$450 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$659 AUD
$463 USD
View
Price last confirmed 37 days ago
A
Retailer 8
-
$890 AUD
$625 USD
View
A
Retailer 9
-
$890 AUD
$625 USD
View
A
Retailer 10
-
$1,019 AUD
€682 EUR
View
A
Retailer 11
-
$1,085 AUD
ZAR 12,313 ZAR
View
A
Retailer 12
-
$1,110 AUD
$780 USD
View
A
Retailer 13
-
$1,125 AUD
£622 GBP
View
A
Retailer 14
-
$1,440 AUD
$1,012 USD
View
A
Retailer 15
-
$1,466 AUD
View
A
Retailer 16
-
$1,559 AUD
$1,095 USD
View
B+
Retailer 17
-
$1,670 AUD
$1,173 USD
View
Retailer 18
-
$2,059 AUD
$1,446 USD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
$2,088 AUD
$1,467 USD
View
Retailer 20
-
$2,145 AUD
$1,507 USD
View
Price last confirmed 35 days ago
B+
Retailer 21
-
$2,194 AUD
$1,541 USD
View
B+
Retailer 22
-
$2,385 AUD
$1,675 USD
View
B+
Retailer 23
-
$2,416 AUD
$1,697 USD
View
B+
Retailer 24
-
$2,481 AUD
£1,372 GBP
View
B
Retailer 25
-
$3,481 AUD
$2,445 USD
View
Most Expensive
B
Brilliant Earth
20681003A · Oct 31
$3,972 AUD
$2,790 USD
View
25 more retailers have this diamond
Prices start from $569 AUDSave up to $3,402 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
1.68ct Round
$569 AUD