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Round|Lab Grown|IGI

1.27ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG778698667

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778698667

Diamond specifications and retailer prices

From €300 EUR
$335 USD
As of October 30, 2026
Save €743 EUR (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,195 EUR at Rare Carat · As of August 3, 2026
View at Rare Carat

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG778698667 or 778698667. Listed at 7 retailers as of October 26, 2026, with a 248% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778698667
Dimensions6.96 × 6.94 × 4.27 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 Faint Blue
Top View
6.96 mm6.94 mm1.27 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778698667
Side View
Table 56.0%Crown 33.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

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 30
Current: €1,195 EUR|Low: €300 EUR|High: €1,602 EUR|Avg: €778 EUR
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5€300 EUR
Retailer 2€407 EUR
Retailer 8€413 EUR
Retailer 4€511 EUR
Retailer 9€764 EUR
Retailer 7€798 EUR
Retailer 3€1,042 EUR
Rare Carat€1,195 EUR
Retailer 6€1,602 EUR

38 data points across 9 retailers

7 retailers€300 EUR to €1,042 EUR

B+
Cheapest Retailer
-
€300 EUR
$335 USD
A
Retailer 2
-
€407 EUR
£358 GBP
View
A
Retailer 3
-
€511 EUR
$571 USD
View
B+
Retailer 4
-
€764 EUR
$853 USD
View
B+
Retailer 5
-
€798 EUR
$891 USD
View
B
Retailer 6
-
€1,042 EUR
£917 GBP
View
Most Expensive
Rare Carat
H10861 · Aug 3
€1,195 EUR
$1,335 USD
View
Price last confirmed 90 days ago
6 more retailers have this diamond
Prices start from €300 EURSave up to €743 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
1.27ct Round
€300 EUR