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Round|Lab Grown|IGI

1.51ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG823695128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG823695128

Diamond specifications and retailer prices

From $669 AUD
$470 USD
As of October 29, 2026
Save $6,264 AUD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,933 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823695128 or 823695128. Listed at 23 retailers as of October 29, 2026, with prices from $669 to $6,933, a $6,264 spread on the same certified stone. Brilliant Earth lists it at $6,933. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695128
Dimensions7.34 × 7.37 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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
7.34 mm7.37 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695128
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

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 29
Current: $6,933 AUD|Low: $669 AUD|High: $6,947 AUD|Avg: $2,722 AUD|-0.2%
Brilliant Earth
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 17$669 AUD
Retailer 2$750 AUD
Retailer 4$830 AUD
Retailer 21$1,165 AUD
Retailer 11$1,367 AUD
Retailer 8$1,630 AUD
Retailer 22$1,630 AUD
Retailer 9$1,640 AUD
Retailer 13$1,944 AUD
Retailer 16$2,170 AUD
Retailer 19$2,257 AUD
Retailer 5$2,276 AUD
Retailer 20$2,603 AUD
Retailer 3$2,668 AUD
Retailer 6$3,256 AUD
Retailer 15$3,723 AUD
Retailer 14$4,195 AUD
Retailer 7$4,687 AUD
Retailer 12$4,761 AUD
Retailer 10$4,911 AUD
Retailer 18$5,337 AUD
Brilliant Earth$6,933 AUD

22 data points across 22 retailers

23 retailers$669 AUD to $6,933 AUD

A
Cheapest Retailer
-
$669 AUD
$470 USD
A
Retailer 2
-
$750 AUD
$527 USD
View
A
Retailer 3
-
$830 AUD
$583 USD
View
A
Retailer 4
-
$1,165 AUD
$818 USD
View
A
Retailer 5
-
$1,367 AUD
$960 USD
View
Final sale: no returns
Retailer 6
-
$1,446 AUD
$1,016 USD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$1,630 AUD
$1,145 USD
View
B+
Retailer 8
-
$1,630 AUD
$1,145 USD
View
B+
Retailer 9
-
$1,640 AUD
HK$9,000 HKD
View
B+
Retailer 10
-
$1,944 AUD
£1,075 GBP
View
B+
Retailer 11
-
$2,170 AUD
£1,200 GBP
View
B+
Retailer 12
-
$2,257 AUD
€1,510 EUR
View
B+
Retailer 13
-
$2,276 AUD
$1,599 USD
View
B+
Retailer 14
-
$2,603 AUD
ZAR 29,541 ZAR
View
B+
Retailer 15
-
$2,668 AUD
$1,874 USD
View
B
Retailer 16
-
$3,256 AUD
$2,287 USD
View
Retailer 17
-
$3,723 AUD
$2,615 USD
View
Price last confirmed 9 days ago
B
Retailer 18
-
$4,195 AUD
$2,947 USD
View
B
Retailer 19
-
$4,687 AUD
$3,292 USD
View
B
Retailer 20
-
$4,761 AUD
SGD 4,519 SGD
View
B
Retailer 21
-
$4,911 AUD
$3,450 USD
View
B
Retailer 22
-
$5,337 AUD
£2,952 GBP
View
Most Expensive
B
Brilliant Earth
21547131A · Oct 29
$6,933 AUD
$4,870 USD
View
22 more retailers have this diamond
Prices start from $669 AUDSave up to $6,264 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
1.51ct Round
$669 AUD