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Round|Lab Grown|IGI

1.23ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG818675571

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818675571

Diamond specifications and retailer prices

From $240 SGD
$188 USD
As of November 1, 2026
Save $1,235 SGD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,476 SGD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818675571 or 818675571. Listed at 17 retailers as of November 1, 2026, with prices from $240 to $1,476, a $1,235 spread on the same certified stone. Reve Diamonds lists it at $1,476. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818675571
Dimensions6.89 × 6.94 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.89 mm6.94 mm1.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818675571
Side View
Table 60.0%Crown 33.2°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.2%

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: Nov 1
Current: $514 SGD|Low: $240 SGD|High: $1,544 SGD|Avg: $696 SGD|-2.2%
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
Reve Diamonds
November 1, 2026
Retailer 7$240 SGD
Retailer 5$268 SGD
Retailer 2$279 SGD
Retailer 4$298 SGD
Retailer 14$298 SGD
Retailer 1$514 SGD
Retailer 6$522 SGD
Retailer 15$534 SGD
Retailer 10$545 SGD
Retailer 3$614 SGD
Retailer 11$671 SGD
Retailer 12$726 SGD
Retailer 16$956 SGD
Retailer 13$960 SGD
Retailer 8$1,026 SGD
Retailer 9$1,391 SGD
Reve Diamonds$1,476 SGD

22 data points across 17 retailers

17 retailers$240 SGD to $1,476 SGD

A
Cheapest Retailer
-
$240 SGD
$188 USD
A
Retailer 2
-
$268 SGD
$210 USD
View
Final sale: no returns
A
Retailer 3
-
$279 SGD
$218 USD
View
Retailer 4
-
$298 SGD
$233 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$298 SGD
$233 USD
View
A
Retailer 6
-
$514 SGD
ZAR 6,492 ZAR
View
A
Retailer 7
-
$522 SGD
$408 USD
View
A
Retailer 8
-
$534 SGD
$418 USD
View
A
Retailer 9
-
$545 SGD
£336 GBP
View
B+
Retailer 10
-
$614 SGD
$480 USD
View
B+
Retailer 11
-
$671 SGD
$525 USD
View
B+
Retailer 12
-
$726 SGD
A$874 AUD
View
B+
Retailer 13
-
$956 SGD
$748 USD
View
B
Retailer 14
-
$960 SGD
$751 USD
View
B
Retailer 15
-
$1,026 SGD
$802 USD
View
B
Retailer 16
-
$1,391 SGD
£857 GBP
View
Most Expensive
B
Reve Diamonds
D603540B5 · Nov 1
$1,476 SGD
$1,154 USD
View
16 more retailers have this diamond
Prices start from $240 SGDSave up to $1,235 SGD

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
1.23ct Round
$240 SGD