CaratHunter
Plans
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 £339 GBP
$454 USD
As of October 30, 2026
Save £1,661 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,299 GBP 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
Colour
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

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: Oct 30
Current: £2,299 GBP|Low: £339 GBP|High: £3,038 GBP|Avg: £1,107 GBP|-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£339 GBP
Retailer 3£391 GBP
Retailer 8£485 GBP
Retailer 6£504 GBP
Retailer 12£612 GBP
Retailer 10£755 GBP
Retailer 7£849 GBP
Retailer 9£1,002 GBP
Retailer 5£1,231 GBP
Retailer 4£1,482 GBP
Retailer 13£1,936 GBP
Retailer 2£2,000 GBP
Rare Carat£2,299 GBP

9 data points across 13 retailers

10 retailers£339 GBP to £2,000 GBP

A
Cheapest Retailer
-
£339 GBP
$454 USD
Final sale: no returns
Retailer 2
-
£391 GBP
View
Price last confirmed 24 days ago
Retailer 3
-
£504 GBP
€643 EUR
View
Price last confirmed 7 days ago
B+
Retailer 4
-
£849 GBP
$1,138 USD
View
B+
Retailer 5
-
£1,002 GBP
SGD 1,815 SGD
View
Retailer 6
-
£1,231 GBP
$1,650 USD
View
Price last confirmed 25 days ago
Retailer 7
-
£1,482 GBP
View
Price last confirmed 25 days ago
B
Retailer 8
-
£1,936 GBP
$2,594 USD
View
B
Retailer 9
-
£2,000 GBP
$2,680 USD
View
Most Expensive
Rare Carat
PE-249558 · Oct 21
£2,299 GBP
$3,080 USD
View
Price last confirmed 9 days ago
9 more retailers have this diamond
Prices start from £339 GBPSave up to £1,661 GBP

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
£339 GBP