CaratHunter
Plans
Radiant|Lab Grown|IGI

4.88ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG812621042

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

Certificate IGI LG812621042

Diamond specifications and retailer prices

From $8,362 AUD
$5,874 USD
As of November 1, 2026
Save $22,548 AUD (73%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $30,910 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.88ct lab-grown radiant diamond

This 4.88ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812621042 or 812621042. Listed at 22 retailers as of October 31, 2026, with prices from $8,362 to $30,910, a $22,548 spread on the same certified stone. Taylor and Hart lists it at $30,910. 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

4.88
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812621042
Dimensions12.04 × 8.44 × 5.61 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
12.04 mm8.44 mm4.88 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812621042
Side View
Table 65.0%Crown 43.4°Girdle: MediumPavilion 35.5°Culet: NoneDepth 66.5%

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: Nov 1
Current: $11,006 AUD|Low: $8,362 AUD|High: $31,450 AUD|Avg: $16,606 AUD|-4.4%
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
Retailer 15
Retailer 16
Taylor and Hart
November 2, 2026
Retailer 4$8,362 AUD
Retailer 2$8,684 AUD
Retailer 12$9,853 AUD
Retailer 1$11,006 AUD
Retailer 16$12,280 AUD
Retailer 8$12,407 AUD
Retailer 15$12,717 AUD
Retailer 6$13,375 AUD
Retailer 11$14,185 AUD
Retailer 3$15,473 AUD
Retailer 9$17,626 AUD
Retailer 13$18,435 AUD
Retailer 10$19,056 AUD
Retailer 5$23,412 AUD
Retailer 14$24,087 AUD
Retailer 7$24,116 AUD
Taylor and Hart$30,910 AUD

36 data points across 17 retailers

22 retailers$8,362 AUD to $30,910 AUD

Retailer 1
-
$7,625 AUD
$5,356 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$8,362 AUD
$5,874 USD
View
Final sale: no returns
A
Retailer 3
-
$8,684 AUD
$6,100 USD
View
Retailer 4
-
$8,784 AUD
$6,170 USD
View
Price last confirmed 37 days ago
Retailer 5
-
$8,845 AUD
$6,213 USD
View
Price last confirmed 29 days ago
Retailer 6
-
$8,845 AUD
$6,213 USD
View
Price last confirmed 22 days ago
A
Retailer 7
-
$9,853 AUD
$6,921 USD
View
Retailer 8
-
$10,500 AUD
$7,376 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$11,006 AUD
£6,087 GBP
View
B+
Retailer 10
-
$12,280 AUD
£6,792 GBP
View
B+
Retailer 11
-
$12,407 AUD
$8,715 USD
View
B+
Retailer 12
-
$12,717 AUD
$8,933 USD
View
B+
Retailer 13
-
$13,375 AUD
$9,395 USD
View
B+
Retailer 14
-
$14,185 AUD
€9,490 EUR
View
B+
Retailer 15
-
$15,473 AUD
$10,869 USD
View
B+
Retailer 16
-
$17,626 AUD
£9,749 GBP
View
B+
Retailer 17
-
$18,435 AUD
ZAR 209,207 ZAR
View
B+
Retailer 18
-
$19,056 AUD
View
B
Retailer 19
-
$23,412 AUD
$16,445 USD
View
B
Retailer 20
-
$24,087 AUD
$16,920 USD
View
B
Retailer 21
-
$24,116 AUD
$16,940 USD
View
Most Expensive
B
Taylor and Hart
3PMCSWU · Oct 31
$30,910 AUD
$21,713 USD
View
21 more retailers have this diamond
Prices start from $8,362 AUDSave up to $22,548 AUD

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
4.88ct Radiant
$8,362 AUD