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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG837615667

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837615667

Diamond specifications and retailer prices

From €209 EUR
$234 USD
As of October 29, 2026
Save €1,115 EUR (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,325 EUR 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 LG837615667 or 837615667. Listed at 20 retailers as of October 29, 2026, with prices from €209 to €1,325, a €1,115 spread on the same certified stone. Brilliant Earth lists it at €1,325. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837615667
Dimensions6.92 × 6.87 × 4.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
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
6.92 mm6.87 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837615667
Side View
Table 60.0%Crown 33.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 59.8%

Caratlytics Score

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A+
Exceptional
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: €1,325 EUR|Low: €209 EUR|High: €1,325 EUR|Avg: €580 EUR
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 12
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Retailer 20
October 31, 2026
Retailer 10€209 EUR
Retailer 14€237 EUR
Retailer 20€245 EUR
Retailer 7€260 EUR
Retailer 15€262 EUR
Retailer 17€360 EUR
Retailer 3€414 EUR
Retailer 2€441 EUR
Retailer 5€447 EUR
Retailer 8€474 EUR
Retailer 16€490 EUR
Retailer 12€622 EUR
Retailer 6€634 EUR
Retailer 18€656 EUR
Retailer 19€843 EUR
Retailer 13€890 EUR
Retailer 4€1,047 EUR
Retailer 9€1,166 EUR
Retailer 11€1,195 EUR
Brilliant Earth€1,325 EUR

22 data points across 20 retailers

20 retailers€209 EUR to €1,325 EUR

A+
Cheapest Retailer
-
€209 EUR
$234 USD
A
Retailer 2
-
€237 EUR
$265 USD
View
Final sale: no returns
A
Retailer 3
-
€245 EUR
$274 USD
View
A
Retailer 4
-
€260 EUR
$290 USD
View
A
Retailer 5
-
€262 EUR
$293 USD
View
A
Retailer 6
-
€360 EUR
$402 USD
View
A
Retailer 7
-
€414 EUR
£364 GBP
View
A
Retailer 8
-
€441 EUR
View
A
Retailer 9
-
€447 EUR
ZAR 8,059 ZAR
View
A
Retailer 10
-
€474 EUR
$530 USD
View
A
Retailer 11
-
€490 EUR
£431 GBP
View
B+
Retailer 12
-
€622 EUR
$695 USD
View
B+
Retailer 13
-
€634 EUR
A$1,090 AUD
View
B+
Retailer 14
-
€656 EUR
$733 USD
View
B+
Retailer 15
-
€843 EUR
$942 USD
View
B+
Retailer 16
-
€890 EUR
$994 USD
View
B+
Retailer 17
-
€1,047 EUR
£921 GBP
View
B+
Retailer 18
-
€1,166 EUR
$1,303 USD
View
Retailer 19
-
€1,195 EUR
$1,335 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21690652A · Oct 30
€1,325 EUR
$1,480 USD
View
19 more retailers have this diamond
Prices start from €209 EURSave up to €1,115 EUR

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
€209 EUR