Asscher|Lab Grown|IGI

1.29ct D IF Asscher Lab Grown Diamond

VG • D/IF • IGI LG756507336

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG756507336

Diamond specifications and retailer prices

From £278 GBP
$372 USD
As of November 1, 2026
Save £553 GBP (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,190 GBP at Rare Carat · As of September 24, 2026
View at Rare Carat

About this 1.29ct lab-grown asscher diamond

This 1.29ct lab-grown asscher 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 very-good cut grade and certified by IGI LG756507336 or 756507336. Listed at 8 retailers as of October 29, 2026, with a 199% 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

1.29
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756507336
Dimensions6.04 × 5.94 × 3.74 mm
L/W Ratio1.02
Culet sizePointed
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
6.04 mm5.94 mm1.29 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756507336
Side View
Table 66.0%Crown 37°Girdle: ThickPavilion 39.6°Culet: NoneDepth 63.0%

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: Nov 1
Current: £1,190 GBP|Low: £248 GBP|High: £2,381 GBP|Avg: £828 GBP|+1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9£248 GBP
Retailer 7£278 GBP
Retailer 3£344 GBP
Retailer 2£384 GBP
Retailer 5£634 GBP
Retailer 6£702 GBP
Retailer 4£830 GBP
Rare Carat£1,190 GBP
Retailer 8£2,381 GBP

39 data points across 9 retailers

8 retailers£278 GBP to £830 GBP

Retailer 1
-
£248 GBP
HK$2,600 HKD
Price last confirmed 59 days ago
B+
Retailer 2
-
£278 GBP
$372 USD
View
A
Retailer 3
-
£344 GBP
€439 EUR
View
A
Retailer 4
-
£384 GBP
View
B+
Retailer 5
-
£634 GBP
$850 USD
View
B+
Retailer 6
-
£702 GBP
$941 USD
View
B+
Retailer 7
-
£830 GBP
View
Most Expensive
Rare Carat
NJ18 344B · Sep 24
£1,190 GBP
$1,595 USD
View
Price last confirmed 38 days ago
7 more retailers have this diamond
Prices start from £278 GBPSave up to £553 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
1.29ct Asscher
£278 GBP