Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

GD • D/IF

Diamond specifications and retailer prices

From $367 SGD
$287 USD
As of October 28, 2026
Save $2,043 SGD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,410 SGD 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 $367 to $2,410, a $2,043 spread on the same certified stone. Blue Nile lists it at $2,410. 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
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: $2,410 SGD|Low: $303 SGD|High: $2,410 SGD|Avg: $882 SGD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 20, 2026
Retailer 5$316 SGD
Retailer 2$367 SGD
Retailer 3$392 SGD
Retailer 4$448 SGD
Retailer 7$975 SGD
Retailer 6$1,391 SGD
Blue Nile$2,410 SGD

33 data points across 7 retailers

8 retailers$367 SGD to $2,410 SGD

Retailer 1
-
$316 SGD
$247 USD
Price last confirmed 20 days ago
Retailer 2
-
$367 SGD
$287 USD
View
Price last confirmed 17 days ago
B+
Retailer 3
-
$367 SGD
$287 USD
View
Retailer 4
-
$392 SGD
$307 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$392 SGD
$307 USD
View
Retailer 6
-
$448 SGD
£276 GBP
View
Price last confirmed 14 days ago
Retailer 7
-
$1,391 SGD
$1,088 USD
View
Price last confirmed 26 days ago
Most Expensive
B
Blue Nile
28929986 · Oct 31
$2,410 SGD
$1,885 USD
View
7 more retailers have this diamond
Prices start from $367 SGDSave up to $2,043 SGD

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
$367 SGD