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Round|Lab Grown|IGI

1.68ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG683520864

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683520864

Diamond specifications and retailer prices

From $554 AUD
$389 USD
As of October 30, 2026
Save $2,934 AUD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,488 AUD at Rare Carat · As of October 25, 2026
View at Rare Carat

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 LG683520864 or 683520864. Listed at 22 retailers as of October 25, 2026, with prices from $554 to $3,488, a $2,934 spread on the same certified stone. Rare Carat lists it at $3,488. 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 angle33.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683520864
Dimensions7.66 × 7.63 × 4.69 mm
L/W Ratio1.00
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
7.66 mm7.63 mm1.68 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683520864
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 41.3°Culet: NoneDepth 61.4%

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: Oct 30
Current: $3,488 AUD|Low: $554 AUD|High: $3,523 AUD|Avg: $1,407 AUD|-1.0%
Rare Carat
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 1, 2026
Retailer 4$554 AUD
Retailer 5$614 AUD
Retailer 7$788 AUD
Retailer 13$843 AUD
Retailer 10$847 AUD
Retailer 6$987 AUD
Retailer 9$1,054 AUD
Retailer 2$1,100 AUD
Retailer 8$1,424 AUD
Retailer 12$1,799 AUD
Retailer 3$2,319 AUD
Retailer 14$2,370 AUD
Retailer 11$2,401 AUD
Rare Carat$3,488 AUD

41 data points across 14 retailers

22 retailers$554 AUD to $3,488 AUD

Retailer 1
-
$475 AUD
$334 USD
Price last confirmed 24 days ago
Retailer 2
-
$495 AUD
$348 USD
View
Price last confirmed 39 days ago
A
Retailer 3
-
$554 AUD
$389 USD
View
Final sale: no returns
Retailer 4
-
$574 AUD
$403 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$605 AUD
$425 USD
View
Price last confirmed 40 days ago
Retailer 6
-
$614 AUD
$431 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
$788 AUD
£436 GBP
View
A
Retailer 8
-
$843 AUD
$592 USD
View
A
Retailer 9
-
$847 AUD
$595 USD
View
A
Retailer 10
-
$987 AUD
$693 USD
View
A
Retailer 11
-
$1,054 AUD
ZAR 11,964 ZAR
View
A
Retailer 12
-
$1,100 AUD
£608 GBP
View
A
Retailer 13
-
$1,424 AUD
View
B+
Retailer 14
-
$1,664 AUD
$1,169 USD
View
B+
Retailer 15
-
$1,799 AUD
$1,264 USD
View
Retailer 16
-
$1,972 AUD
$1,385 USD
View
Price last confirmed 24 days ago
Retailer 17
-
$1,972 AUD
$1,385 USD
View
Price last confirmed 41 days ago
B+
Retailer 18
-
$2,032 AUD
$1,427 USD
View
B+
Retailer 19
-
$2,319 AUD
$1,629 USD
View
B+
Retailer 20
-
$2,370 AUD
$1,664 USD
View
B+
Retailer 21
-
$2,401 AUD
£1,328 GBP
View
Most Expensive
B
Rare Carat
SS11634_l_683520864 · Oct 25
$3,488 AUD
$2,450 USD
View
21 more retailers have this diamond
Prices start from $554 AUDSave up to $2,934 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
$554 AUD