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Cushion|Lab Grown|IGI

5.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG768630668

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768630668

Diamond specifications and retailer prices

From $12,052 AUD
$8,466 USD
As of November 1, 2026
Save $43,209 AUD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $55,261 AUD at With Clarity · As of October 31, 2026
View at With Clarity

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 LG768630668 or 768630668. Listed at 14 retailers as of October 31, 2026, with prices from $12,052 to $55,261, a $43,209 spread on the same certified stone. With Clarity lists it at $55,261. 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°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630668
Dimensions11.53 × 9.47 × 6.29 mm
L/W Ratio1.22
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
11.53 mm9.47 mm5.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630668
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 36°Culet: NoneDepth 66.4%

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: $16,388 AUD|Low: $12,052 AUD|High: $56,488 AUD|Avg: $27,364 AUD|-17.3%
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
With Clarity
November 1, 2026
Retailer 8$12,052 AUD
Retailer 5$14,559 AUD
Retailer 13$14,815 AUD
Retailer 3$15,289 AUD
Retailer 7$15,933 AUD
Retailer 1$16,388 AUD
Retailer 6$22,758 AUD
Retailer 10$23,788 AUD
Retailer 9$24,857 AUD
Retailer 2$25,397 AUD
Retailer 12$27,611 AUD
Retailer 4$38,250 AUD
Retailer 11$43,726 AUD
With Clarity$55,261 AUD

39 data points across 14 retailers

14 retailers$12,052 AUD to $55,261 AUD

A
Cheapest Retailer
-
$12,052 AUD
$8,466 USD
A
Retailer 2
-
$14,559 AUD
$10,227 USD
View
A
Retailer 3
-
$14,815 AUD
HK$81,300 HKD
View
Retailer 4
-
$15,289 AUD
$10,740 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$15,933 AUD
$11,192 USD
View
A
Retailer 6
-
$16,388 AUD
£9,064 GBP
View
A
Retailer 7
-
$22,758 AUD
€15,225 EUR
View
B+
Retailer 8
-
$23,788 AUD
$16,710 USD
View
B+
Retailer 9
-
$24,857 AUD
$17,461 USD
View
B+
Retailer 10
-
$25,397 AUD
£14,047 GBP
View
B+
Retailer 11
-
$27,611 AUD
ZAR 313,328 ZAR
View
B
Retailer 12
-
$38,250 AUD
$26,869 USD
View
B
Retailer 13
-
$43,726 AUD
$30,715 USD
View
Most Expensive
B
With Clarity
768630668 · Oct 31
$55,261 AUD
$38,818 USD
View
13 more retailers have this diamond
Prices start from $12,052 AUDSave up to $43,209 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
$12,052 AUD