Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

GD • D/IF

Diamond specifications and retailer prices

From €257 EUR
$287 USD
As of October 28, 2026
Save €1,430 EUR (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,687 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

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 standard cut grade and certified by IGI. Listed at 8 retailers as of October 28, 2026, with prices from €257 to €1,687, a €1,430 spread on the same certified stone. Blue Nile lists it at €1,687. 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
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.90 × 5.28 × 3.58 mm
L/W Ratio1.50
Top View
7.90 mm5.28 mm1.29 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €1,687 EUR|Low: €212 EUR|High: €1,687 EUR|Avg: €621 EUR
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 20, 2026
Retailer 5€221 EUR
Retailer 2€257 EUR
Retailer 3€275 EUR
Retailer 4€314 EUR
Retailer 7€683 EUR
Retailer 6€974 EUR
Blue Nile€1,687 EUR

31 data points across 7 retailers

8 retailers€257 EUR to €1,687 EUR

Retailer 1
-
€221 EUR
$247 USD
Price last confirmed 21 days ago
Retailer 2
-
€257 EUR
$287 USD
View
Price last confirmed 19 days ago
B+
Retailer 3
-
€257 EUR
$287 USD
View
Retailer 4
-
€275 EUR
$307 USD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
€275 EUR
$307 USD
View
Retailer 6
-
€314 EUR
£276 GBP
View
Price last confirmed 16 days ago
Retailer 7
-
€974 EUR
$1,088 USD
View
Price last confirmed 28 days ago
Most Expensive
B
Blue Nile
28929986 · Oct 31
€1,687 EUR
$1,885 USD
View
7 more retailers have this diamond
Prices start from €257 EURSave up to €1,430 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.

B+
1.29ct Radiant
€257 EUR