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Radiant|Lab Grown|IGI

2.57ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG840652908

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

Certificate IGI LG840652908

Diamond specifications and retailer prices

From $640 SGD
$501 USD
As of November 1, 2026
Save $4,448 SGD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,331 SGD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840652908 or 840652908. Listed at 16 retailers as of November 1, 2026, with a 694% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.57
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840652908
Dimensions8.94 × 7.22 × 4.75 mm
L/W Ratio1.24
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
8.94 mm7.22 mm2.57 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840652908
Side View
Table 64.0%Crown 40.3°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 65.8%

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: $5,331 SGD|Low: $640 SGD|High: $5,331 SGD|Avg: $2,319 SGD
Rare Carat
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 3$640 SGD
Retailer 2$829 SGD
Retailer 4$942 SGD
Retailer 12$952 SGD
Retailer 9$1,304 SGD
Retailer 14$1,740 SGD
Retailer 13$1,800 SGD
Retailer 15$1,892 SGD
Retailer 7$2,007 SGD
Retailer 5$2,658 SGD
Retailer 8$2,704 SGD
Retailer 6$2,743 SGD
Retailer 10$3,273 SGD
Retailer 11$4,004 SGD
Retailer 16$5,088 SGD
Rare Carat$5,331 SGD

13 data points across 16 retailers

16 retailers$640 SGD to $5,088 SGD

A
Cheapest Retailer
-
$640 SGD
$501 USD
Final sale: no returns
A
Retailer 2
-
$829 SGD
£511 GBP
View
B+
Retailer 3
-
$942 SGD
$737 USD
View
A
Retailer 4
-
$952 SGD
$745 USD
View
A
Retailer 5
-
$1,304 SGD
£803 GBP
View
A
Retailer 6
-
$1,740 SGD
A$2,094 AUD
View
A
Retailer 7
-
$1,800 SGD
$1,408 USD
View
A
Retailer 8
-
$1,892 SGD
ZAR 23,904 ZAR
View
A
Retailer 9
-
$2,007 SGD
$1,570 USD
View
A
Retailer 10
-
$2,658 SGD
$2,079 USD
View
A
Retailer 11
-
$2,704 SGD
$2,115 USD
View
A
Retailer 12
-
$2,743 SGD
View
B+
Retailer 13
-
$3,273 SGD
£2,016 GBP
View
B+
Retailer 14
-
$4,004 SGD
A$4,818 AUD
View
B
Retailer 15
-
$5,088 SGD
$3,980 USD
View
Most Expensive
Rare Carat
LA2653 · Oct 21
$5,331 SGD
$4,170 USD
View
Price last confirmed 12 days ago
15 more retailers have this diamond
Prices start from $640 SGDSave up to $4,448 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
2.57ct Radiant
$640 SGD