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Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG675511885

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

Certificate IGI LG675511885

Diamond specifications and retailer prices

From $396 SGD
$310 USD
As of October 30, 2026
Save $1,586 SGD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,429 SGD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.29ct lab-grown radiant diamond

This 1.29ct lab-grown radiant 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 LG675511885 or 675511885. Listed at 20 retailers as of October 29, 2026, with a 400% 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 angle40.5°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675511885
Dimensions7.69 × 5.08 × 3.82 mm
L/W Ratio1.51
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 mm5.08 mm1.29 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675511885
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 36.3°Culet: NoneDepth 75.2%

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 30
Current: $2,429 SGD|Low: $381 SGD|High: $2,467 SGD|Avg: $1,141 SGD|-0.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 20$396 SGD
Retailer 3$444 SGD
Retailer 7$460 SGD
Retailer 6$492 SGD
Retailer 21$492 SGD
Retailer 2$508 SGD
Retailer 9$638 SGD
Retailer 18$748 SGD
Retailer 19$800 SGD
Retailer 8$811 SGD
Retailer 16$845 SGD
Retailer 12$891 SGD
Retailer 10$1,126 SGD
Retailer 17$1,511 SGD
Retailer 5$1,581 SGD
Retailer 15$1,601 SGD
Retailer 4$1,654 SGD
Retailer 14$1,836 SGD
Retailer 22$1,853 SGD
Retailer 11$1,909 SGD
Retailer 13$1,982 SGD
Rare Carat$2,429 SGD

33 data points across 22 retailers

20 retailers$396 SGD to $1,982 SGD

A
Cheapest Retailer
-
$396 SGD
$310 USD
A
Retailer 2
-
$444 SGD
$347 USD
View
Final sale: no returns
A
Retailer 3
-
$460 SGD
$360 USD
View
A
Retailer 4
-
$492 SGD
$385 USD
View
A
Retailer 5
-
$492 SGD
$385 USD
View
A
Retailer 6
-
$508 SGD
£313 GBP
View
Retailer 7
-
$638 SGD
HK$3,900 HKD
View
Price last confirmed 31 days ago
A
Retailer 8
-
$748 SGD
$585 USD
View
A
Retailer 9
-
$800 SGD
$626 USD
View
A
Retailer 10
-
$811 SGD
$634 USD
View
A
Retailer 11
-
$845 SGD
ZAR 10,683 ZAR
View
B+
Retailer 12
-
$1,126 SGD
$881 USD
View
B
Retailer 13
-
$1,511 SGD
$1,182 USD
View
B
Retailer 14
-
$1,581 SGD
$1,237 USD
View
B
Retailer 15
-
$1,601 SGD
$1,253 USD
View
Retailer 16
-
$1,654 SGD
A$1,991 AUD
View
Price last confirmed 30 days ago
Retailer 17
-
$1,836 SGD
View
Price last confirmed 24 days ago
B
Retailer 18
-
$1,853 SGD
$1,449 USD
View
B
Retailer 19
-
$1,982 SGD
£1,221 GBP
View
Most Expensive
Rare Carat
NE675511885_l_675511885 · Oct 18
$2,429 SGD
$1,900 USD
View
Price last confirmed 12 days ago
19 more retailers have this diamond
Prices start from $396 SGDSave up to $1,586 SGD

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 Radiant
$396 SGD