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Radiant|Lab Grown|IGI

1.23ct D VVS1 Radiant Lab Grown Diamond

EX • D/VVS1 • IGI LG770607549

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

Certificate IGI LG770607549

Diamond specifications and retailer prices

From £138 GBP
$184 USD
As of October 27, 2026
Save £1,194 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,332 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG770607549 or 770607549. Listed at 20 retailers as of October 27, 2026, with prices from £138 to £1,332, a £1,194 spread on the same certified stone. Do Amore Diamonds lists it at £1,332. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770607549
Dimensions5.37 × 5.37 × 7.80 mm
L/W Ratio1.00
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
5.37 mm5.37 mm1.23 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770607549
Side View
Table 63.0%Crown 37.9°Girdle: MediumPavilion 33.4°Culet: NoneDepth 65.2%

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 27
Current: £1,332 GBP|Low: £138 GBP|High: £1,332 GBP|Avg: £502 GBP
Do Amore Diamonds
Retailer 2
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Retailer 19
October 29, 2026
Retailer 19£138 GBP
Retailer 8£155 GBP
Retailer 18£160 GBP
Retailer 3£172 GBP
Retailer 10£303 GBP
Retailer 13£326 GBP
Retailer 12£346 GBP
Retailer 7£348 GBP
Retailer 6£415 GBP
Retailer 14£463 GBP
Retailer 17£477 GBP
Retailer 4£610 GBP
Retailer 15£705 GBP
Retailer 9£739 GBP
Retailer 5£746 GBP
Retailer 11£770 GBP
Retailer 16£798 GBP
Retailer 2£891 GBP
Do Amore Diamonds£1,332 GBP

44 data points across 19 retailers

20 retailers£138 GBP to £1,332 GBP

A
Cheapest Retailer
-
£138 GBP
$184 USD
A
Retailer 2
-
£155 GBP
$206 USD
View
Final sale: no returns
A
Retailer 3
-
£160 GBP
$213 USD
View
A
Retailer 4
-
£172 GBP
$228 USD
View
A
Retailer 5
-
£303 GBP
$402 USD
View
A
Retailer 6
-
£326 GBP
ZAR 6,988 ZAR
View
A
Retailer 7
-
£346 GBP
View
A
Retailer 8
-
£348 GBP
$462 USD
View
A
Retailer 9
-
£415 GBP
$551 USD
View
B+
Retailer 10
-
£463 GBP
A$947 AUD
View
B+
Retailer 11
-
£477 GBP
$634 USD
View
B+
Retailer 12
-
£610 GBP
$810 USD
View
B+
Retailer 13
-
£705 GBP
A$1,441 AUD
View
B
Retailer 14
-
£739 GBP
$982 USD
View
B
Retailer 15
-
£746 GBP
View
B
Retailer 16
-
£770 GBP
SGD 1,383 SGD
View
B+
Retailer 17
-
£798 GBP
$1,060 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
£891 GBP
View
B
Retailer 19
-
£993 GBP
$1,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-ECF518840 · Oct 29
£1,332 GBP
$1,770 USD
View
19 more retailers have this diamond
Prices start from £138 GBPSave up to £1,194 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
1.23ct Radiant
£138 GBP