Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG675511885

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG675511885

Diamond specifications and retailer prices

From €275 EUR
As of November 4, 2026
Save €1,089 EUR (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,686 EUR at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.29ct lab-grown radiant diamond

This 1.29ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG675511885 or 675511885. Listed at 20 retailers as of November 4, 2026, with a 396% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.29
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675511885
Dimensions7.69 × 5.08 × 3.82 mm
L/W Ratio1.51
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
7.69 mm5.08 mm1.29 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675511885
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 36.3°Culet: NoneDepth 75.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €1,686 EUR|Low: €264 EUR|High: €1,713 EUR|Avg: €747 EUR|-0.2%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 5, 2026
Retailer 18€275 EUR
Retailer 3€308 EUR
Retailer 7€320 EUR
Retailer 6€342 EUR
Retailer 19€342 EUR
Retailer 13€351 EUR
Retailer 9€443 EUR
Retailer 14€479 EUR
Retailer 17€556 EUR
Retailer 8€563 EUR
Retailer 15€588 EUR
Retailer 12€618 EUR
Retailer 10€782 EUR
Retailer 16€1,049 EUR
Retailer 5€1,098 EUR
Retailer 4€1,148 EUR
Retailer 20€1,286 EUR
Retailer 11€1,325 EUR
Retailer 2€1,364 EUR
Rare Carat€1,686 EUR

37 data points across 20 retailers

20 retailers€275 EUR to €1,364 EUR

A
Cheapest Retailer
-
€275 EUR
A
Retailer 2
-
€308 EUR
View
Final sale: no returns
A
Retailer 3
-
€320 EUR
View
Retailer 4
-
€342 EUR
View
Price last confirmed 11 days ago
A
Retailer 5
-
€342 EUR
View
A
Retailer 6
-
€351 EUR
View
Retailer 7
-
€443 EUR
View
Price last confirmed 36 days ago
A
Retailer 8
-
€479 EUR
View
A
Retailer 9
-
€556 EUR
View
A
Retailer 10
-
€563 EUR
View
A
Retailer 11
-
€588 EUR
View
B+
Retailer 12
-
€782 EUR
View
B
Retailer 13
-
€1,049 EUR
View
B
Retailer 14
-
€1,098 EUR
View
B
Retailer 15
-
€1,111 EUR
View
Retailer 16
-
€1,148 EUR
View
Price last confirmed 35 days ago
Retailer 17
-
€1,275 EUR
View
Price last confirmed 29 days ago
B
Retailer 18
-
€1,286 EUR
View
B
Retailer 19
-
€1,364 EUR
View
Most Expensive
Rare Carat
NE675511885_l_675511885 · Oct 18
€1,686 EUR
$1,900 USD
View
Price last confirmed 17 days ago
19 more retailers have this diamond
Prices start from €275 EURSave up to €1,089 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
1.29ct Radiant
€275 EUR