Radiant|Lab Grown|IGI

1.38ct D IF Radiant Lab Grown Diamond

D/IF

Diamond specifications and retailer prices

From $305 USD
As of October 28, 2026
Save $21 USD (6%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,046 USD at NZ Jewellers · As of October 4, 2026
View at NZ Jewellers

About this 1.38ct lab-grown radiant diamond

This 1.38ct 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) and certified by IGI. Listed at 7 retailers as of October 28, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.38
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.21 × 5.55 × 3.61 mm
L/W Ratio1.48
Top View
8.21 mm5.55 mm1.38 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: MediumPavilionCulet: NoneDepth 65.0%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: $1,046 USD|Low: $252 USD|High: $1,046 USD|Avg: $432 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 20, 2026
Retailer 5$263 USD
Retailer 2$305 USD
Retailer 3$326 USD
Retailer 4$337 USD
NZ Jewellers$1,046 USD

34 data points across 5 retailers

7 retailers$305 USD to $326 USD

Retailer 1
-
$263 USD
Price last confirmed 19 days ago
Retailer 2
-
$305 USD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$305 USD
View
Retailer 4
-
$326 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$326 USD
View
Retailer 6
-
$337 USD
£265 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
8f1f2400-06cd-49cf-bc8c-af2251d5da75 · Oct 4
$1,046 USD
View
Price last confirmed 25 days ago
6 more retailers have this diamond
Prices start from $305 USDSave up to $21 USD

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+
1.38ct Radiant
$305 USD