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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

EX • D/IF • IGI LG842604216

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842604216

Diamond specifications and retailer prices

From $218 USD
As of October 29, 2026
Save $1,262 USD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,480 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG842604216 or 842604216. Listed at 21 retailers as of October 29, 2026, with prices from $218 to $1,480, a $1,262 spread on the same certified stone. Brilliant Earth lists it at $1,480. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842604216
Dimensions6.75 × 6.79 × 4.26 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
6.75 mm6.79 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842604216
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.0%

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: $1,480 USD|Low: $218 USD|High: $1,700 USD|Avg: $667 USD|-12.9%
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 21$218 USD
Retailer 8$244 USD
Retailer 19$253 USD
Retailer 9$271 USD
Retailer 10$271 USD
Retailer 5$431 USD
Retailer 11$464 USD
Retailer 17$465 USD
Retailer 15$468 USD
Retailer 2$501 USD
Retailer 7$512 USD
Retailer 18$662 USD
Retailer 20$689 USD
Retailer 13$707 USD
Retailer 4$870 USD
Retailer 12$907 USD
Retailer 14$923 USD
Retailer 6$965 USD
Retailer 16$1,091 USD
Retailer 3$1,325 USD
Brilliant Earth$1,480 USD

17 data points across 21 retailers

21 retailers$218 USD to $1,480 USD

A
Cheapest Retailer
-
$218 USD
A
Retailer 2
-
$244 USD
View
Final sale: no returns
A
Retailer 3
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$253 USD
View
A
Retailer 4
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$271 USD
View
A
Retailer 5
-
$271 USD
View
Retailer 6
-
$431 USD
£340 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
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$464 USD
View
A
Retailer 8
-
$465 USD
ZAR 7,511 ZAR
View
A
Retailer 9
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$468 USD
€446 EUR
View
A
Retailer 10
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$501 USD
£395 GBP
View
A
Retailer 11
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$512 USD
View
B+
Retailer 12
-
$662 USD
A$1,018 AUD
View
B+
Retailer 13
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$689 USD
View
B+
Retailer 14
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$707 USD
View
B+
Retailer 15
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$870 USD
View
B+
Retailer 16
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$907 USD
SGD 1,226 SGD
View
B+
Retailer 17
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$923 USD
View
B+
Retailer 18
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$965 USD
View
B+
Retailer 19
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$1,091 USD
£859 GBP
View
Retailer 20
-
$1,325 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
22132106A · Oct 30
$1,480 USD
View
20 more retailers have this diamond
Prices start from $218 USDSave up to $1,262 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
1.20ct Round
$218 USD