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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 $373 USD
As of October 29, 2026
Save $2,467 USD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,840 USD 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 $373 to $2,840, a $2,467 spread on the same certified stone. Brilliant Earth lists it at $2,840. 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
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

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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 29
Current: $2,840 USD|Low: $373 USD|High: $3,230 USD|Avg: $1,082 USD|-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$373 USD
Retailer 9$417 USD
Retailer 10$460 USD
Retailer 5$462 USD
Retailer 15$545 USD
Retailer 4$618 USD
Retailer 6$722 USD
Retailer 14$795 USD
Retailer 11$833 USD
Retailer 12$1,073 USD
Retailer 16$1,152 USD
Retailer 7$1,178 USD
Retailer 2$1,517 USD
Retailer 8$1,745 USD
Retailer 3$1,747 USD
Retailer 13$1,816 USD
Brilliant Earth$2,840 USD

42 data points across 17 retailers

22 retailers$373 USD to $2,840 USD

Retailer 1
-
$373 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$373 USD
View
A
Retailer 3
-
$417 USD
View
Final sale: no returns
Retailer 4
-
$433 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$456 USD
View
Price last confirmed 36 days ago
A
Retailer 6
-
$460 USD
View
A
Retailer 7
-
$462 USD
View
A
Retailer 8
-
$545 USD
View
A
Retailer 9
-
$618 USD
View
A
Retailer 10
-
$722 USD
View
A
Retailer 11
-
$795 USD
ZAR 12,837 ZAR
View
A
Retailer 12
-
$833 USD
£656 GBP
View
A
Retailer 13
-
$1,073 USD
A$1,651 AUD
View
B+
Retailer 14
-
$1,152 USD
View
B+
Retailer 15
-
$1,178 USD
View
Retailer 16
-
$1,201 USD
View
Price last confirmed 45 days ago
B+
Retailer 17
-
$1,486 USD
View
B+
Retailer 18
-
$1,517 USD
View
B+
Retailer 19
-
$1,745 USD
View
B+
Retailer 20
-
$1,747 USD
View
B+
Retailer 21
-
$1,816 USD
£1,430 GBP
View
Most Expensive
B
Brilliant Earth
20477613A · Oct 31
$2,840 USD
View
21 more retailers have this diamond
Prices start from $373 USDSave up to $2,467 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
$373 USD