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Round|Lab Grown|IGI

27.40ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG770608891

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770608891

Diamond specifications and retailer prices

From $18,670 USD
As of October 31, 2026
Save $37,384 USD (67%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $56,054 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 27.4ct lab-grown round diamond

This 27.4ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770608891 or 770608891. Listed at 16 retailers as of October 30, 2026, with prices from $18,670 to $56,054, a $37,384 spread on the same certified stone. Taylor and Hart lists it at $56,054. 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

27.40
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770608891
Dimensions19.42 × 19.49 × 11.80 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.42 mm19.49 mm27.40 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770608891
Side View
Table 58.0%Crown 34.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

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 31
Current: $40,371 USD|Low: $17,870 USD|High: $76,705 USD|Avg: $34,174 USD|-45.9%
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
Taylor and Hart
October 31, 2026
Retailer 9$17,870 USD
Retailer 3$18,670 USD
Retailer 11$20,608 USD
Retailer 4$20,717 USD
Retailer 5$20,773 USD
Retailer 10$23,552 USD
Retailer 13$23,626 USD
Retailer 2$23,905 USD
Retailer 7$25,603 USD
Retailer 6$34,319 USD
Retailer 1$40,371 USD
Retailer 8$44,816 USD
Retailer 12$50,048 USD
Retailer 14$55,750 USD
Taylor and Hart$56,054 USD

33 data points across 15 retailers

16 retailers$18,670 USD to $56,054 USD

Retailer 1
-
$17,870 USD
£14,071 GBP
Price last confirmed 14 days ago
B+
Retailer 2
-
$18,670 USD
View
B+
Retailer 3
-
$20,608 USD
View
B+
Retailer 4
-
$20,717 USD
View
B+
Retailer 5
-
$20,773 USD
View
B
Retailer 6
-
$23,552 USD
View
B
Retailer 7
-
$23,626 USD
View
Retailer 8
-
$23,905 USD
View
Price last confirmed 19 days ago
B
Retailer 9
-
$23,905 USD
View
B
Retailer 10
-
$25,603 USD
£20,160 GBP
View
Retailer 11
-
$34,319 USD
View
Price last confirmed 73 days ago
B
Retailer 12
-
$40,371 USD
€38,449 EUR
View
Retailer 13
-
$44,816 USD
A$68,948 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$50,048 USD
View
B
Retailer 15
-
$55,750 USD
View
Most Expensive
B
Taylor and Hart
AQIMONT · Oct 30
$56,054 USD
View
15 more retailers have this diamond
Prices start from $18,670 USDSave up to $37,384 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+
27.40ct Round
$18,670 USD