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Radiant|Lab Grown|IGI

1.88ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG818653767

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

Certificate IGI LG818653767

Diamond specifications and retailer prices

From £487 GBP
$652 USD
As of October 30, 2026
Save £2,797 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,411 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.88ct lab-grown radiant diamond

This 1.88ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818653767 or 818653767. Listed at 22 retailers as of October 30, 2026, with a 575% 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

1.88
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653767
Dimensions8.56 × 6.15 × 4.27 mm
L/W Ratio1.39
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
8.56 mm6.15 mm1.88 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653767
Side View
Table 62.0%Crown 40.4°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 69.4%

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: £3,411 GBP|Low: £487 GBP|High: £4,493 GBP|Avg: £1,557 GBP|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 11
Retailer 12
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Retailer 21
October 31, 2026
Retailer 14£487 GBP
Retailer 21£530 GBP
Retailer 12£565 GBP
Retailer 5£568 GBP
Retailer 17£698 GBP
Retailer 4£758 GBP
Retailer 13£903 GBP
Retailer 19£922 GBP
Retailer 2£966 GBP
Retailer 16£1,038 GBP
Retailer 7£1,208 GBP
Retailer 6£1,314 GBP
Retailer 10£1,587 GBP
Retailer 8£1,752 GBP
Retailer 20£1,858 GBP
Retailer 9£1,948 GBP
Retailer 11£2,048 GBP
Retailer 18£2,382 GBP
Retailer 3£2,894 GBP
Retailer 15£3,284 GBP
Rare Carat£3,411 GBP

32 data points across 21 retailers

22 retailers£487 GBP to £3,284 GBP

A
Cheapest Retailer
-
£487 GBP
$652 USD
A
Retailer 2
-
£530 GBP
$710 USD
View
A
Retailer 3
-
£565 GBP
$757 USD
View
A
Retailer 4
-
£568 GBP
$761 USD
View
Final sale: no returns
Retailer 5
-
£603 GBP
$808 USD
View
Price last confirmed 14 days ago
A
Retailer 6
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£698 GBP
$935 USD
View
A
Retailer 7
-
£758 GBP
$1,015 USD
View
A
Retailer 8
-
£903 GBP
View
A
Retailer 9
-
£922 GBP
$1,235 USD
View
B+
Retailer 10
-
£966 GBP
€1,233 EUR
View
B+
Retailer 11
-
£1,038 GBP
ZAR 22,458 ZAR
View
B+
Retailer 12
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£1,208 GBP
$1,619 USD
View
B+
Retailer 13
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£1,314 GBP
$1,760 USD
View
B+
Retailer 14
-
£1,587 GBP
$2,127 USD
View
B
Retailer 15
-
£1,752 GBP
View
B
Retailer 16
-
£1,858 GBP
$2,489 USD
View
B
Retailer 17
-
£1,948 GBP
$2,611 USD
View
B
Retailer 18
-
£2,048 GBP
SGD 3,709 SGD
View
B
Retailer 19
-
£2,382 GBP
View
B
Retailer 20
-
£2,894 GBP
$3,877 USD
View
B
Retailer 21
-
£3,284 GBP
$4,400 USD
View
Most Expensive
Rare Carat
PD-234952 · Oct 21
£3,411 GBP
$4,570 USD
View
Price last confirmed 10 days ago
21 more retailers have this diamond
Prices start from £487 GBPSave up to £2,797 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
1.88ct Radiant
£487 GBP