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Cushion|Lab Grown|IGI

5.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780662902

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780662902

Diamond specifications and retailer prices

From $10,977 AUD
$7,711 USD
As of November 1, 2026
Save $32,749 AUD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $43,726 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.31ct lab-grown cushion diamond

This 5.31ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780662902 or 780662902. Listed at 14 retailers as of October 31, 2026, with prices from $10,977 to $43,726, a $32,749 spread on the same certified stone. Taylor and Hart lists it at $43,726. 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

5.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662902
Dimensions11.84 × 9.29 × 6.05 mm
L/W Ratio1.27
Girdle conditionFaceted
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
11.84 mm9.29 mm5.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662902
Side View
Table 61.0%Crown 36.4°Girdle: MED-THKPavilion 35.8°Culet: NoneDepth 65.1%

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: Nov 1
Current: $14,684 AUD|Low: $10,977 AUD|High: $44,308 AUD|Avg: $23,791 AUD|-6.7%
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
November 1, 2026
Retailer 12$10,977 AUD
Retailer 11$11,735 AUD
Retailer 7$14,257 AUD
Retailer 1$14,684 AUD
Retailer 4$14,906 AUD
Retailer 8$16,388 AUD
Retailer 13$22,520 AUD
Retailer 9$22,758 AUD
Retailer 2$23,788 AUD
Retailer 6$25,227 AUD
Retailer 3$27,611 AUD
Retailer 10$33,830 AUD
Retailer 5$38,250 AUD
Taylor and Hart$43,726 AUD

40 data points across 14 retailers

14 retailers$10,977 AUD to $43,726 AUD

A
Cheapest Retailer
-
$10,977 AUD
$7,711 USD
A
Retailer 2
-
$11,735 AUD
$8,243 USD
View
A
Retailer 3
-
$14,257 AUD
$10,015 USD
View
A
Retailer 4
-
$14,684 AUD
$10,315 USD
View
A
Retailer 5
-
$14,906 AUD
HK$81,800 HKD
View
A
Retailer 6
-
$16,388 AUD
£9,064 GBP
View
A
Retailer 7
-
$22,520 AUD
$15,819 USD
View
A
Retailer 8
-
$22,758 AUD
€15,225 EUR
View
B+
Retailer 9
-
$23,788 AUD
$16,710 USD
View
B+
Retailer 10
-
$25,227 AUD
£13,953 GBP
View
B+
Retailer 11
-
$27,611 AUD
ZAR 313,328 ZAR
View
B+
Retailer 12
-
$33,830 AUD
$23,764 USD
View
B
Retailer 13
-
$38,250 AUD
$26,869 USD
View
Most Expensive
B
Taylor and Hart
J1NOSVH · Oct 31
$43,726 AUD
$30,715 USD
View
13 more retailers have this diamond
Prices start from $10,977 AUDSave up to $32,749 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
5.31ct Cushion
$10,977 AUD