Radiant|Lab Grown|IGI

1.37ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG836607943

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

Certificate IGI LG836607943

Diamond specifications and retailer prices

From $454 USD
As of October 30, 2026
Save $2,226 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,080 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.37ct lab-grown radiant diamond

This 1.37ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG836607943 or 836607943. Listed at 10 retailers as of October 30, 2026, with a 490% 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

1.37
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836607943
Dimensions7.70 × 5.60 × 3.70 mm
L/W Ratio1.38
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
7.70 mm5.60 mm1.37 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836607943
Side View
Table 65.0%Crown 41.5°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 66.1%

Caratlytics Score

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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: $3,080 USD|Low: $454 USD|High: $4,070 USD|Avg: $1,483 USD|-0.5%
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
October 30, 2026
Retailer 11$454 USD
Retailer 3$524 USD
Retailer 8$650 USD
Retailer 6$675 USD
Retailer 12$821 USD
Retailer 10$1,011 USD
Retailer 7$1,138 USD
Retailer 9$1,343 USD
Retailer 5$1,650 USD
Retailer 4$1,986 USD
Retailer 13$2,594 USD
Retailer 2$2,680 USD
Rare Carat$3,080 USD

9 data points across 13 retailers

10 retailers$454 USD to $2,680 USD

A
Cheapest Retailer
-
$454 USD
Final sale: no returns
Retailer 2
-
$524 USD
£412 GBP
View
Price last confirmed 24 days ago
Retailer 3
-
$675 USD
€643 EUR
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$1,138 USD
View
B+
Retailer 5
-
$1,343 USD
SGD 1,815 SGD
View
Retailer 6
-
$1,650 USD
View
Price last confirmed 25 days ago
Retailer 7
-
$1,986 USD
£1,564 GBP
View
Price last confirmed 24 days ago
B
Retailer 8
-
$2,594 USD
View
B
Retailer 9
-
$2,680 USD
View
Most Expensive
Rare Carat
PE-249558 · Oct 21
$3,080 USD
View
Price last confirmed 9 days ago
9 more retailers have this diamond
Prices start from $454 USDSave up to $2,226 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.

A
1.37ct Radiant
$454 USD