Round|Lab Grown|IGI

1.21ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG823695234

Shape and cutting style on the report: Round brilliant

Certificate IGI LG823695234

Diamond specifications and retailer prices

From $683 USD
As of October 29, 2026
Save $2,051 USD (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,354 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823695234 or 823695234. Listed at 21 retailers as of October 28, 2026, with a 300% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695234
Dimensions6.91 × 6.88 × 4.17 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
6.91 mm6.88 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695234
Side View
Table 57.0%Crown 33°Girdle: MediumPavilion 41°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,354 USD|Low: $655 USD|High: $3,381 USD|Avg: $1,556 USD|-0.7%
MOH London
Retailer 2
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Retailer 6
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Retailer 10
Retailer 11
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Retailer 21
October 29, 2026
Retailer 19$683 USD
Retailer 20$743 USD
Retailer 6$764 USD
Retailer 5$792 USD
Retailer 7$792 USD
Retailer 3$858 USD
Retailer 21$922 USD
Retailer 9$970 USD
Retailer 11$1,022 USD
Retailer 2$1,260 USD
Retailer 4$1,288 USD
Retailer 13$1,288 USD
Retailer 15$1,351 USD
Retailer 16$1,456 USD
Retailer 18$2,023 USD
Retailer 10$2,227 USD
Retailer 12$2,669 USD
Retailer 17$2,730 USD
Retailer 14$2,731 USD
Retailer 8$2,734 USD
MOH London$3,354 USD

29 data points across 21 retailers

21 retailers$683 USD to $2,734 USD

B+
Cheapest Retailer
-
$683 USD
B+
Retailer 2
-
$743 USD
View
B+
Retailer 3
-
$764 USD
View
Final sale: no returns
B+
Retailer 4
-
$792 USD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
$792 USD
View
B+
Retailer 6
-
$858 USD
View
B+
Retailer 7
-
$922 USD
HK$7,200 HKD
View
B+
Retailer 8
-
$970 USD
View
B+
Retailer 9
-
$1,022 USD
View
B+
Retailer 10
-
$1,260 USD
£992 GBP
View
B+
Retailer 11
-
$1,288 USD
View
B+
Retailer 12
-
$1,288 USD
€1,227 EUR
View
B+
Retailer 13
-
$1,351 USD
£1,064 GBP
View
B+
Retailer 14
-
$1,456 USD
ZAR 23,518 ZAR
View
B
Retailer 15
-
$2,023 USD
View
B
Retailer 16
-
$2,227 USD
View
B
Retailer 17
-
$2,669 USD
SGD 3,607 SGD
View
B
Retailer 18
-
$2,730 USD
View
B
Retailer 19
-
$2,731 USD
View
B
Retailer 20
-
$2,734 USD
View
Most Expensive
B
MOH London
LG823695234 · Oct 29
$3,354 USD
£2,641 GBP
View
Price under review
20 more retailers have this diamond
Prices start from $683 USDSave up to $2,051 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.

B+
1.21ct Round
$683 USD