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Round|Lab Grown|IGI

1.30ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG801686787

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801686787

Diamond specifications and retailer prices

From £203 GBP
$273 USD
As of November 1, 2026
Save £1,026 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,230 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round 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 top-tier cut grade and certified by IGI LG801686787 or 801686787. Listed at 15 retailers as of November 1, 2026, with prices from £203 to £1,230, a £1,026 spread on the same certified stone. Rare Carat lists it at £1,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801686787
Dimensions6.99 × 6.94 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.99 mm6.94 mm1.30 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801686787
Side View
Table 57.0%Crown 36.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.3%

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: £1,230 GBP|Low: £203 GBP|High: £1,230 GBP|Avg: £650 GBP
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
Retailer 14
Retailer 15
November 3, 2026
Retailer 14£203 GBP
Retailer 13£228 GBP
Retailer 2£369 GBP
Retailer 9£401 GBP
Retailer 3£419 GBP
Retailer 11£435 GBP
Retailer 5£441 GBP
Retailer 10£443 GBP
Retailer 12£605 GBP
Retailer 8£776 GBP
Retailer 6£850 GBP
Retailer 7£893 GBP
Retailer 15£1,012 GBP
Retailer 4£1,064 GBP
Rare Carat£1,230 GBP

4 data points across 15 retailers

15 retailers£203 GBP to £1,230 GBP

A
Cheapest Retailer
-
£203 GBP
$273 USD
A
Retailer 2
-
£228 GBP
$306 USD
View
Final sale: no returns
A
Retailer 3
-
£369 GBP
$495 USD
View
A
Retailer 4
-
£401 GBP
View
A
Retailer 5
-
£419 GBP
$562 USD
View
A
Retailer 6
-
£435 GBP
ZAR 9,441 ZAR
View
A
Retailer 7
-
£441 GBP
$592 USD
View
A
Retailer 8
-
£443 GBP
View
B+
Retailer 9
-
£605 GBP
$812 USD
View
B+
Retailer 10
-
£776 GBP
$1,041 USD
View
B+
Retailer 11
-
£850 GBP
$1,140 USD
View
B+
Retailer 12
-
£893 GBP
$1,199 USD
View
B
Retailer 13
-
£1,012 GBP
View
B
Retailer 14
-
£1,064 GBP
$1,428 USD
View
Most Expensive
B
Rare Carat
E-168 - 590 · Nov 1
£1,230 GBP
$1,650 USD
View
14 more retailers have this diamond
Prices start from £203 GBPSave up to £1,026 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
1.30ct Round
£203 GBP