Radiant|Lab Grown|IGI

5.09ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG828681283

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

Certificate IGI LG828681283

Diamond specifications and retailer prices

From $10,818 USD
As of October 31, 2026
Save $32,180 USD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $42,998 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.09ct lab-grown radiant diamond

This 5.09ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828681283 or 828681283. Listed at 13 retailers as of October 31, 2026, with prices from $10,818 to $42,998, a $32,180 spread on the same certified stone. With Clarity lists it at $42,998. 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

5.09
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828681283
Dimensions12.35 × 8.63 × 5.52 mm
L/W Ratio1.43
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
12.35 mm8.63 mm5.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828681283
Side View
Table 63.0%Crown 40.8°Girdle: MED-STKPavilion 32.8°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
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 31
Current: $12,739 USD|Low: $10,818 USD|High: $46,305 USD|Avg: $22,043 USD|-8.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 31, 2026
Retailer 4$10,818 USD
Retailer 7$11,520 USD
Retailer 2$11,927 USD
Retailer 1$12,739 USD
Retailer 6$17,280 USD
Retailer 10$18,344 USD
Retailer 11$19,021 USD
Retailer 5$19,283 USD
Retailer 9$21,419 USD
Retailer 3$31,354 USD
Retailer 8$33,175 USD
With Clarity$42,998 USD

19 data points across 12 retailers

13 retailers$10,818 USD to $42,998 USD

A
Cheapest Retailer
-
$10,818 USD
A
Retailer 2
-
$11,520 USD
HK$90,000 HKD
View
A
Retailer 3
-
$11,927 USD
View
A
Retailer 4
-
$12,739 USD
£10,031 GBP
View
A
Retailer 5
-
$17,280 USD
View
A
Retailer 6
-
$18,344 USD
£14,444 GBP
View
Retailer 7
-
$19,021 USD
€18,115 EUR
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$19,283 USD
View
B+
Retailer 9
-
$21,419 USD
ZAR 346,025 ZAR
View
B+
Retailer 10
-
$22,905 USD
View
B
Retailer 11
-
$31,354 USD
View
B
Retailer 12
-
$33,175 USD
View
Most Expensive
B
With Clarity
828681283 · Oct 31
$42,998 USD
View
12 more retailers have this diamond
Prices start from $10,818 USDSave up to $32,180 USD

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
5.09ct Radiant
$10,818 USD