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Round|Lab Grown|IGI

1.68ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG760571324

Shape and cutting style on the report: Round brilliant

Certificate IGI LG760571324

Diamond specifications and retailer prices

From £266 GBP
$357 USD
As of November 1, 2026
Save £1,816 GBP (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,082 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.68ct lab-grown round diamond

This 1.68ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG760571324 or 760571324. Listed at 24 retailers as of October 31, 2026, with prices from £266 to £2,082, a £1,816 spread on the same certified stone. Brilliant Earth lists it at £2,082. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.68
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760571324
Dimensions7.69 × 7.66 × 4.65 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.69 mm7.66 mm1.68 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760571324
Side View
Table 60.0%Crown 34.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.6%

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: Nov 1
Current: £2,082 GBP|Low: £210 GBP|High: £3,769 GBP|Avg: £805 GBP|-44.8%
Brilliant Earth
Retailer 2
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November 1, 2026
Retailer 2£266 GBP
Retailer 23£298 GBP
Retailer 7£309 GBP
Retailer 3£330 GBP
Retailer 16£352 GBP
Retailer 17£423 GBP
Retailer 15£444 GBP
Retailer 4£452 GBP
Retailer 19£525 GBP
Retailer 8£536 GBP
Retailer 12£552 GBP
Retailer 11£570 GBP
Retailer 18£588 GBP
Retailer 10£770 GBP
Retailer 6£794 GBP
Retailer 20£875 GBP
Retailer 5£1,061 GBP
Retailer 22£1,092 GBP
Retailer 21£1,247 GBP
Retailer 13£1,264 GBP
Retailer 9£1,303 GBP
Retailer 14£1,746 GBP
Brilliant Earth£2,082 GBP

6 data points across 23 retailers

24 retailers£266 GBP to £2,082 GBP

A
Cheapest Retailer
-
£266 GBP
$357 USD
A
Retailer 2
-
£298 GBP
$399 USD
View
Final sale: no returns
A
Retailer 3
-
£309 GBP
$414 USD
View
A
Retailer 4
-
£330 GBP
$442 USD
View
A
Retailer 5
-
£423 GBP
View
A
Retailer 6
-
£444 GBP
$595 USD
View
A
Retailer 7
-
£452 GBP
$605 USD
View
A
Retailer 8
-
£525 GBP
$703 USD
View
A
Retailer 9
-
£536 GBP
€684 EUR
View
A
Retailer 10
-
£552 GBP
A$1,138 AUD
View
A
Retailer 11
-
£570 GBP
ZAR 12,342 ZAR
View
A
Retailer 12
-
£588 GBP
View
A
Retailer 13
-
£770 GBP
A$1,587 AUD
View
A
Retailer 14
-
£794 GBP
$1,064 USD
View
B+
Retailer 15
-
£875 GBP
$1,172 USD
View
B+
Retailer 16
-
£1,061 GBP
$1,422 USD
View
B+
Retailer 17
-
£1,092 GBP
$1,463 USD
View
B+
Retailer 18
-
£1,177 GBP
$1,577 USD
View
B+
Retailer 19
-
£1,247 GBP
$1,671 USD
View
B+
Retailer 20
-
£1,264 GBP
$1,694 USD
View
B+
Retailer 21
-
£1,303 GBP
View
Retailer 22
-
£1,564 GBP
A$3,223 AUD
View
Price last confirmed 120 days ago
Retailer 23
-
£1,746 GBP
$2,339 USD
View
Price last confirmed 66 days ago
Most Expensive
B
Brilliant Earth
17667337A · Oct 31
£2,082 GBP
$2,790 USD
View
23 more retailers have this diamond
Prices start from £266 GBPSave up to £1,816 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
1.68ct Round
£266 GBP