Radiant|Lab Grown|IGI

1.01ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG778628708

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

Certificate IGI LG778628708

Diamond specifications and retailer prices

From $199 SGD
$156 USD
As of October 30, 2026
Save $1,147 SGD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,347 SGD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778628708 or 778628708. Listed at 21 retailers as of October 30, 2026, with prices from $199 to $1,347, a $1,147 spread on the same certified stone. Reve Diamonds lists it at $1,347. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778628708
Dimensions6.24 × 4.97 × 3.55 mm
L/W Ratio1.26
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
6.24 mm4.97 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778628708
Side View
Table 69.0%Crown 27.3°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 71.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $434 SGD|Low: $125 SGD|High: $1,171 SGD|Avg: $448 SGD|+4.6%
Retailer 1
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
October 30, 2026
Retailer 5$125 SGD
Retailer 13$199 SGD
Retailer 3$222 SGD
Retailer 10$248 SGD
Retailer 14$248 SGD
Retailer 4$335 SGD
Retailer 6$413 SGD
Retailer 1$434 SGD
Retailer 11$446 SGD
Retailer 9$470 SGD
Retailer 2$559 SGD
Retailer 12$638 SGD
Retailer 8$831 SGD
Retailer 7$1,164 SGD

41 data points across 14 retailers

21 retailers$199 SGD to $1,347 SGD

A
Cheapest Retailer
-
$199 SGD
$156 USD
Retailer 2
-
$199 SGD
$156 USD
View
Price last confirmed 22 days ago
Retailer 3
-
$199 SGD
$156 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$199 SGD
$156 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$222 SGD
$174 USD
View
Final sale: no returns
A
Retailer 6
-
$231 SGD
$181 USD
View
Retailer 7
-
$244 SGD
$191 USD
View
Price last confirmed 36 days ago
A
Retailer 8
-
$248 SGD
$194 USD
View
Retailer 9
-
$248 SGD
$194 USD
View
Price last confirmed 28 days ago
B+
Retailer 10
-
$335 SGD
$262 USD
View
A
Retailer 11
-
$413 SGD
$323 USD
View
A
Retailer 12
-
$434 SGD
£267 GBP
View
Retailer 13
-
$446 SGD
€332 EUR
View
Price last confirmed 7 days ago
A
Retailer 14
-
$470 SGD
£290 GBP
View
B+
Retailer 15
-
$559 SGD
$437 USD
View
B+
Retailer 16
-
$638 SGD
$499 USD
View
Retailer 17
-
$795 SGD
$622 USD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$831 SGD
$650 USD
View
B
Retailer 19
-
$866 SGD
$677 USD
View
B
Retailer 20
-
$1,164 SGD
£717 GBP
View
Most Expensive
B
Reve Diamonds
8613479D5 · Oct 30
$1,347 SGD
$1,054 USD
View
20 more retailers have this diamond
Prices start from $199 SGDSave up to $1,147 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
1.01ct Radiant
$199 SGD