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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 $389 USD
As of October 30, 2026
Save $2,061 USD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,450 USD 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 $389 to $2,450, a $2,061 spread on the same certified stone. Rare Carat lists it at $2,450. 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
Color
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

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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: $2,450 USD|Low: $389 USD|High: $2,475 USD|Avg: $979 USD|-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
October 31, 2026
Retailer 4$389 USD
Retailer 5$431 USD
Retailer 7$553 USD
Retailer 13$592 USD
Retailer 10$595 USD
Retailer 6$693 USD
Retailer 9$741 USD
Retailer 2$766 USD
Retailer 8$1,000 USD
Retailer 12$1,264 USD
Retailer 3$1,629 USD
Retailer 14$1,664 USD
Retailer 11$1,687 USD
Rare Carat$2,450 USD

40 data points across 14 retailers

22 retailers$389 USD to $2,450 USD

Retailer 1
-
$334 USD
Price last confirmed 24 days ago
Retailer 2
-
$348 USD
View
Price last confirmed 39 days ago
A
Retailer 3
-
$389 USD
View
Final sale: no returns
Retailer 4
-
$403 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$425 USD
View
Price last confirmed 40 days ago
Retailer 6
-
$431 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
$553 USD
£436 GBP
View
A
Retailer 8
-
$592 USD
View
A
Retailer 9
-
$595 USD
View
A
Retailer 10
-
$693 USD
View
A
Retailer 11
-
$741 USD
ZAR 11,964 ZAR
View
A
Retailer 12
-
$766 USD
£603 GBP
View
A
Retailer 13
-
$1,000 USD
A$1,539 AUD
View
B+
Retailer 14
-
$1,169 USD
View
B+
Retailer 15
-
$1,264 USD
View
Retailer 16
-
$1,385 USD
View
Price last confirmed 24 days ago
Retailer 17
-
$1,385 USD
View
Price last confirmed 40 days ago
B+
Retailer 18
-
$1,427 USD
View
B+
Retailer 19
-
$1,629 USD
View
B+
Retailer 20
-
$1,664 USD
View
B+
Retailer 21
-
$1,687 USD
£1,328 GBP
View
Most Expensive
B
Rare Carat
SS11634_l_683520864 · Oct 25
$2,450 USD
View
21 more retailers have this diamond
Prices start from $389 USDSave up to $2,061 USD

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
$389 USD