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Radiant|Lab Grown|IGI

5.10ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG821639486

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

Certificate IGI LG821639486

Diamond specifications and retailer prices

From $11,851 SGD
$9,246 USD
As of October 29, 2026
Save $30,733 SGD (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $42,584 SGD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.1ct lab-grown radiant diamond

This 5.1ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821639486 or 821639486. Listed at 14 retailers as of October 29, 2026, with prices from $11,851 to $42,584, a $30,733 spread on the same certified stone. Taylor and Hart lists it at $42,584. 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

5.10
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821639486
Dimensions12.21 × 8.59 × 5.68 mm
L/W Ratio1.42
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
12.21 mm8.59 mm5.10 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821639486
Side View
Table 63.0%Crown 43.5°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $16,357 SGD|Low: $11,851 SGD|High: $91,577 SGD|Avg: $28,300 SGD|-20.6%
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
Taylor and Hart
October 30, 2026
Retailer 10$11,851 SGD
Retailer 12$13,398 SGD
Retailer 13$14,227 SGD
Retailer 2$14,782 SGD
Retailer 9$15,041 SGD
Retailer 1$16,357 SGD
Retailer 8$22,683 SGD
Retailer 7$24,289 SGD
Retailer 4$24,759 SGD
Retailer 5$26,300 SGD
Retailer 6$27,501 SGD
Retailer 11$37,390 SGD
Taylor and Hart$42,584 SGD
Retailer 3$73,623 SGD

37 data points across 14 retailers

14 retailers$11,851 SGD to $42,584 SGD

A
Cheapest Retailer
-
$11,851 SGD
$9,246 USD
A
Retailer 2
-
$13,398 SGD
$10,453 USD
View
A
Retailer 3
-
$14,227 SGD
$11,100 USD
View
A
Retailer 4
-
$14,782 SGD
HK$90,100 HKD
View
Retailer 5
-
$15,041 SGD
$11,735 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$16,357 SGD
£10,049 GBP
View
A
Retailer 7
-
$22,683 SGD
€16,855 EUR
View
A
Retailer 8
-
$24,289 SGD
£14,922 GBP
View
B+
Retailer 9
-
$24,759 SGD
$19,317 USD
View
B+
Retailer 10
-
$26,300 SGD
$20,520 USD
View
B+
Retailer 11
-
$27,501 SGD
ZAR 346,633 ZAR
View
B+
Retailer 12
-
$37,390 SGD
$29,172 USD
View
Most Expensive
B+
Taylor and Hart
2R16V7D · Oct 30
$42,584 SGD
$33,224 USD
View
12 more retailers have this diamond
Prices start from $11,851 SGDSave up to $30,733 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
5.10ct Radiant
$11,851 SGD