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Round|Lab Grown|IGI

1.68ct D IF Round Lab Grown Diamond

EX • D/IF • IGI LG800618698

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800618698

Diamond specifications and retailer prices

From $531 AUD
$373 USD
As of October 29, 2026
Save $3,512 AUD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,043 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 LG800618698 or 800618698. Listed at 22 retailers as of October 29, 2026, with prices from $531 to $4,043, a $3,512 spread on the same certified stone. Brilliant Earth lists it at $4,043. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800618698
Dimensions7.56 × 7.53 × 4.77 mm
L/W Ratio1.00
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
7.56 mm7.53 mm1.68 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800618698
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.2%

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 29
Current: $4,043 AUD|Low: $531 AUD|High: $4,598 AUD|Avg: $1,540 AUD|-12.1%
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
October 31, 2026
Retailer 17$531 AUD
Retailer 9$594 AUD
Retailer 10$655 AUD
Retailer 5$658 AUD
Retailer 15$776 AUD
Retailer 4$880 AUD
Retailer 6$1,028 AUD
Retailer 14$1,131 AUD
Retailer 11$1,186 AUD
Retailer 12$1,528 AUD
Retailer 16$1,640 AUD
Retailer 7$1,677 AUD
Retailer 2$2,159 AUD
Retailer 8$2,485 AUD
Retailer 3$2,487 AUD
Retailer 13$2,585 AUD
Brilliant Earth$4,043 AUD

42 data points across 17 retailers

22 retailers$531 AUD to $4,043 AUD

Retailer 1
-
$531 AUD
$373 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$531 AUD
$373 USD
View
A
Retailer 3
-
$594 AUD
$417 USD
View
Final sale: no returns
Retailer 4
-
$616 AUD
$433 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$649 AUD
$456 USD
View
Price last confirmed 36 days ago
A
Retailer 6
-
$655 AUD
$460 USD
View
A
Retailer 7
-
$658 AUD
$462 USD
View
A
Retailer 8
-
$776 AUD
$545 USD
View
A
Retailer 9
-
$880 AUD
$618 USD
View
A
Retailer 10
-
$1,028 AUD
$722 USD
View
A
Retailer 11
-
$1,131 AUD
ZAR 12,837 ZAR
View
A
Retailer 12
-
$1,186 AUD
£656 GBP
View
A
Retailer 13
-
$1,528 AUD
View
B+
Retailer 14
-
$1,640 AUD
$1,152 USD
View
B+
Retailer 15
-
$1,677 AUD
$1,178 USD
View
Retailer 16
-
$1,710 AUD
$1,201 USD
View
Price last confirmed 45 days ago
B+
Retailer 17
-
$2,115 AUD
$1,486 USD
View
B+
Retailer 18
-
$2,159 AUD
$1,517 USD
View
B+
Retailer 19
-
$2,485 AUD
$1,745 USD
View
B+
Retailer 20
-
$2,487 AUD
$1,747 USD
View
B+
Retailer 21
-
$2,585 AUD
£1,430 GBP
View
Most Expensive
B
Brilliant Earth
20477613A · Oct 31
$4,043 AUD
$2,840 USD
View
21 more retailers have this diamond
Prices start from $531 AUDSave up to $3,512 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
$531 AUD